3.8.44 \(\int \frac {1}{x^{3/2} (a+c x^4)} \, dx\) [744]

Optimal. Leaf size=297 \[ -\frac {2}{a \sqrt {x}}-\frac {\sqrt [8]{c} \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \tan ^{-1}\left (1+\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \tan ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}-\frac {\sqrt [8]{c} \tanh ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}+\frac {\sqrt [8]{c} \log \left (\sqrt [4]{-a}-\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}-\frac {\sqrt [8]{c} \log \left (\sqrt [4]{-a}+\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}} \]

[Out]

1/2*c^(1/8)*arctan(c^(1/8)*x^(1/2)/(-a)^(1/8))/(-a)^(9/8)-1/2*c^(1/8)*arctanh(c^(1/8)*x^(1/2)/(-a)^(1/8))/(-a)
^(9/8)+1/4*c^(1/8)*arctan(-1+c^(1/8)*2^(1/2)*x^(1/2)/(-a)^(1/8))/(-a)^(9/8)*2^(1/2)+1/4*c^(1/8)*arctan(1+c^(1/
8)*2^(1/2)*x^(1/2)/(-a)^(1/8))/(-a)^(9/8)*2^(1/2)+1/8*c^(1/8)*ln((-a)^(1/4)+c^(1/4)*x-(-a)^(1/8)*c^(1/8)*2^(1/
2)*x^(1/2))/(-a)^(9/8)*2^(1/2)-1/8*c^(1/8)*ln((-a)^(1/4)+c^(1/4)*x+(-a)^(1/8)*c^(1/8)*2^(1/2)*x^(1/2))/(-a)^(9
/8)*2^(1/2)-2/a/x^(1/2)

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Rubi [A]
time = 0.19, antiderivative size = 297, normalized size of antiderivative = 1.00, number of steps used = 15, number of rules used = 12, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.800, Rules used = {331, 335, 307, 303, 1176, 631, 210, 1179, 642, 304, 211, 214} \begin {gather*} -\frac {\sqrt [8]{c} \text {ArcTan}\left (1-\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \text {ArcTan}\left (\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}+1\right )}{2 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \text {ArcTan}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}+\frac {\sqrt [8]{c} \log \left (-\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{-a}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}-\frac {\sqrt [8]{c} \log \left (\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{-a}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}-\frac {\sqrt [8]{c} \tanh ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}-\frac {2}{a \sqrt {x}} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[1/(x^(3/2)*(a + c*x^4)),x]

[Out]

-2/(a*Sqrt[x]) - (c^(1/8)*ArcTan[1 - (Sqrt[2]*c^(1/8)*Sqrt[x])/(-a)^(1/8)])/(2*Sqrt[2]*(-a)^(9/8)) + (c^(1/8)*
ArcTan[1 + (Sqrt[2]*c^(1/8)*Sqrt[x])/(-a)^(1/8)])/(2*Sqrt[2]*(-a)^(9/8)) + (c^(1/8)*ArcTan[(c^(1/8)*Sqrt[x])/(
-a)^(1/8)])/(2*(-a)^(9/8)) - (c^(1/8)*ArcTanh[(c^(1/8)*Sqrt[x])/(-a)^(1/8)])/(2*(-a)^(9/8)) + (c^(1/8)*Log[(-a
)^(1/4) - Sqrt[2]*(-a)^(1/8)*c^(1/8)*Sqrt[x] + c^(1/4)*x])/(4*Sqrt[2]*(-a)^(9/8)) - (c^(1/8)*Log[(-a)^(1/4) +
Sqrt[2]*(-a)^(1/8)*c^(1/8)*Sqrt[x] + c^(1/4)*x])/(4*Sqrt[2]*(-a)^(9/8))

Rule 210

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(-(Rt[-a, 2]*Rt[-b, 2])^(-1))*ArcTan[Rt[-b, 2]*(x/Rt[-a, 2])
], x] /; FreeQ[{a, b}, x] && PosQ[a/b] && (LtQ[a, 0] || LtQ[b, 0])

Rule 211

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(Rt[a/b, 2]/a)*ArcTan[x/Rt[a/b, 2]], x] /; FreeQ[{a, b}, x]
&& PosQ[a/b]

Rule 214

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(Rt[-a/b, 2]/a)*ArcTanh[x/Rt[-a/b, 2]], x] /; FreeQ[{a, b},
x] && NegQ[a/b]

Rule 303

Int[(x_)^2/((a_) + (b_.)*(x_)^4), x_Symbol] :> With[{r = Numerator[Rt[a/b, 2]], s = Denominator[Rt[a/b, 2]]},
Dist[1/(2*s), Int[(r + s*x^2)/(a + b*x^4), x], x] - Dist[1/(2*s), Int[(r - s*x^2)/(a + b*x^4), x], x]] /; Free
Q[{a, b}, x] && (GtQ[a/b, 0] || (PosQ[a/b] && AtomQ[SplitProduct[SumBaseQ, a]] && AtomQ[SplitProduct[SumBaseQ,
b]]))

Rule 304

Int[(x_)^2/((a_) + (b_.)*(x_)^4), x_Symbol] :> With[{r = Numerator[Rt[-a/b, 2]], s = Denominator[Rt[-a/b, 2]]}
, Dist[s/(2*b), Int[1/(r + s*x^2), x], x] - Dist[s/(2*b), Int[1/(r - s*x^2), x], x]] /; FreeQ[{a, b}, x] &&  !
GtQ[a/b, 0]

Rule 307

Int[(x_)^(m_)/((a_) + (b_.)*(x_)^(n_)), x_Symbol] :> With[{r = Numerator[Rt[-a/b, 2]], s = Denominator[Rt[-a/b
, 2]]}, Dist[s/(2*b), Int[x^(m - n/2)/(r + s*x^(n/2)), x], x] - Dist[s/(2*b), Int[x^(m - n/2)/(r - s*x^(n/2)),
x], x]] /; FreeQ[{a, b}, x] && IGtQ[n/4, 0] && IGtQ[m, 0] && LeQ[n/2, m] && LtQ[m, n] &&  !GtQ[a/b, 0]

Rule 331

Int[((c_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(c*x)^(m + 1)*((a + b*x^n)^(p + 1)/(a*c
*(m + 1))), x] - Dist[b*((m + n*(p + 1) + 1)/(a*c^n*(m + 1))), Int[(c*x)^(m + n)*(a + b*x^n)^p, x], x] /; Free
Q[{a, b, c, p}, x] && IGtQ[n, 0] && LtQ[m, -1] && IntBinomialQ[a, b, c, n, m, p, x]

Rule 335

Int[((c_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> With[{k = Denominator[m]}, Dist[k/c, Subst[I
nt[x^(k*(m + 1) - 1)*(a + b*(x^(k*n)/c^n))^p, x], x, (c*x)^(1/k)], x]] /; FreeQ[{a, b, c, p}, x] && IGtQ[n, 0]
&& FractionQ[m] && IntBinomialQ[a, b, c, n, m, p, x]

Rule 631

Int[((a_) + (b_.)*(x_) + (c_.)*(x_)^2)^(-1), x_Symbol] :> With[{q = 1 - 4*Simplify[a*(c/b^2)]}, Dist[-2/b, Sub
st[Int[1/(q - x^2), x], x, 1 + 2*c*(x/b)], x] /; RationalQ[q] && (EqQ[q^2, 1] ||  !RationalQ[b^2 - 4*a*c])] /;
FreeQ[{a, b, c}, x] && NeQ[b^2 - 4*a*c, 0]

Rule 642

Int[((d_) + (e_.)*(x_))/((a_.) + (b_.)*(x_) + (c_.)*(x_)^2), x_Symbol] :> Simp[d*(Log[RemoveContent[a + b*x +
c*x^2, x]]/b), x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[2*c*d - b*e, 0]

Rule 1176

Int[((d_) + (e_.)*(x_)^2)/((a_) + (c_.)*(x_)^4), x_Symbol] :> With[{q = Rt[2*(d/e), 2]}, Dist[e/(2*c), Int[1/S
imp[d/e + q*x + x^2, x], x], x] + Dist[e/(2*c), Int[1/Simp[d/e - q*x + x^2, x], x], x]] /; FreeQ[{a, c, d, e},
x] && EqQ[c*d^2 - a*e^2, 0] && PosQ[d*e]

Rule 1179

Int[((d_) + (e_.)*(x_)^2)/((a_) + (c_.)*(x_)^4), x_Symbol] :> With[{q = Rt[-2*(d/e), 2]}, Dist[e/(2*c*q), Int[
(q - 2*x)/Simp[d/e + q*x - x^2, x], x], x] + Dist[e/(2*c*q), Int[(q + 2*x)/Simp[d/e - q*x - x^2, x], x], x]] /
; FreeQ[{a, c, d, e}, x] && EqQ[c*d^2 - a*e^2, 0] && NegQ[d*e]

Rubi steps

\begin {align*} \int \frac {1}{x^{3/2} \left (a+c x^4\right )} \, dx &=-\frac {2}{a \sqrt {x}}-\frac {c \int \frac {x^{5/2}}{a+c x^4} \, dx}{a}\\ &=-\frac {2}{a \sqrt {x}}-\frac {(2 c) \text {Subst}\left (\int \frac {x^6}{a+c x^8} \, dx,x,\sqrt {x}\right )}{a}\\ &=-\frac {2}{a \sqrt {x}}+\frac {\sqrt {c} \text {Subst}\left (\int \frac {x^2}{\sqrt {-a}-\sqrt {c} x^4} \, dx,x,\sqrt {x}\right )}{a}-\frac {\sqrt {c} \text {Subst}\left (\int \frac {x^2}{\sqrt {-a}+\sqrt {c} x^4} \, dx,x,\sqrt {x}\right )}{a}\\ &=-\frac {2}{a \sqrt {x}}+\frac {\sqrt [4]{c} \text {Subst}\left (\int \frac {1}{\sqrt [4]{-a}-\sqrt [4]{c} x^2} \, dx,x,\sqrt {x}\right )}{2 a}-\frac {\sqrt [4]{c} \text {Subst}\left (\int \frac {1}{\sqrt [4]{-a}+\sqrt [4]{c} x^2} \, dx,x,\sqrt {x}\right )}{2 a}+\frac {\sqrt [4]{c} \text {Subst}\left (\int \frac {\sqrt [4]{-a}-\sqrt [4]{c} x^2}{\sqrt {-a}+\sqrt {c} x^4} \, dx,x,\sqrt {x}\right )}{2 a}-\frac {\sqrt [4]{c} \text {Subst}\left (\int \frac {\sqrt [4]{-a}+\sqrt [4]{c} x^2}{\sqrt {-a}+\sqrt {c} x^4} \, dx,x,\sqrt {x}\right )}{2 a}\\ &=-\frac {2}{a \sqrt {x}}+\frac {\sqrt [8]{c} \tan ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}-\frac {\sqrt [8]{c} \tanh ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}-\frac {\text {Subst}\left (\int \frac {1}{\frac {\sqrt [4]{-a}}{\sqrt [4]{c}}-\frac {\sqrt {2} \sqrt [8]{-a} x}{\sqrt [8]{c}}+x^2} \, dx,x,\sqrt {x}\right )}{4 a}-\frac {\text {Subst}\left (\int \frac {1}{\frac {\sqrt [4]{-a}}{\sqrt [4]{c}}+\frac {\sqrt {2} \sqrt [8]{-a} x}{\sqrt [8]{c}}+x^2} \, dx,x,\sqrt {x}\right )}{4 a}+\frac {\sqrt [8]{c} \text {Subst}\left (\int \frac {\frac {\sqrt {2} \sqrt [8]{-a}}{\sqrt [8]{c}}+2 x}{-\frac {\sqrt [4]{-a}}{\sqrt [4]{c}}-\frac {\sqrt {2} \sqrt [8]{-a} x}{\sqrt [8]{c}}-x^2} \, dx,x,\sqrt {x}\right )}{4 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \text {Subst}\left (\int \frac {\frac {\sqrt {2} \sqrt [8]{-a}}{\sqrt [8]{c}}-2 x}{-\frac {\sqrt [4]{-a}}{\sqrt [4]{c}}+\frac {\sqrt {2} \sqrt [8]{-a} x}{\sqrt [8]{c}}-x^2} \, dx,x,\sqrt {x}\right )}{4 \sqrt {2} (-a)^{9/8}}\\ &=-\frac {2}{a \sqrt {x}}+\frac {\sqrt [8]{c} \tan ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}-\frac {\sqrt [8]{c} \tanh ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}+\frac {\sqrt [8]{c} \log \left (\sqrt [4]{-a}-\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}-\frac {\sqrt [8]{c} \log \left (\sqrt [4]{-a}+\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1-\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}-\frac {\sqrt [8]{c} \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1+\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}\\ &=-\frac {2}{a \sqrt {x}}-\frac {\sqrt [8]{c} \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \tan ^{-1}\left (1+\frac {\sqrt {2} \sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 \sqrt {2} (-a)^{9/8}}+\frac {\sqrt [8]{c} \tan ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}-\frac {\sqrt [8]{c} \tanh ^{-1}\left (\frac {\sqrt [8]{c} \sqrt {x}}{\sqrt [8]{-a}}\right )}{2 (-a)^{9/8}}+\frac {\sqrt [8]{c} \log \left (\sqrt [4]{-a}-\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}-\frac {\sqrt [8]{c} \log \left (\sqrt [4]{-a}+\sqrt {2} \sqrt [8]{-a} \sqrt [8]{c} \sqrt {x}+\sqrt [4]{c} x\right )}{4 \sqrt {2} (-a)^{9/8}}\\ \end {align*}

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Mathematica [A]
time = 0.71, size = 276, normalized size = 0.93 \begin {gather*} \frac {-8 \sqrt [8]{a}+\sqrt {2+\sqrt {2}} \sqrt [8]{c} \sqrt {x} \tan ^{-1}\left (\frac {\sqrt {1-\frac {1}{\sqrt {2}}} \left (\sqrt [4]{a}-\sqrt [4]{c} x\right )}{\sqrt [8]{a} \sqrt [8]{c} \sqrt {x}}\right )+\sqrt [8]{c} \sqrt {-\left (\left (-2+\sqrt {2}\right ) x\right )} \tan ^{-1}\left (\frac {\sqrt {1+\frac {1}{\sqrt {2}}} \left (\sqrt [4]{a}-\sqrt [4]{c} x\right )}{\sqrt [8]{a} \sqrt [8]{c} \sqrt {x}}\right )+\sqrt {2+\sqrt {2}} \sqrt [8]{c} \sqrt {x} \tanh ^{-1}\left (\frac {\sqrt {2+\sqrt {2}} \sqrt [8]{a} \sqrt [8]{c} \sqrt {x}}{\sqrt [4]{a}+\sqrt [4]{c} x}\right )+\sqrt [8]{c} \sqrt {-\left (\left (-2+\sqrt {2}\right ) x\right )} \tanh ^{-1}\left (\frac {\sqrt [8]{a} \sqrt [8]{c} \sqrt {-\left (\left (-2+\sqrt {2}\right ) x\right )}}{\sqrt [4]{a}+\sqrt [4]{c} x}\right )}{4 a^{9/8} \sqrt {x}} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[1/(x^(3/2)*(a + c*x^4)),x]

[Out]

(-8*a^(1/8) + Sqrt[2 + Sqrt[2]]*c^(1/8)*Sqrt[x]*ArcTan[(Sqrt[1 - 1/Sqrt[2]]*(a^(1/4) - c^(1/4)*x))/(a^(1/8)*c^
(1/8)*Sqrt[x])] + c^(1/8)*Sqrt[-((-2 + Sqrt[2])*x)]*ArcTan[(Sqrt[1 + 1/Sqrt[2]]*(a^(1/4) - c^(1/4)*x))/(a^(1/8
)*c^(1/8)*Sqrt[x])] + Sqrt[2 + Sqrt[2]]*c^(1/8)*Sqrt[x]*ArcTanh[(Sqrt[2 + Sqrt[2]]*a^(1/8)*c^(1/8)*Sqrt[x])/(a
^(1/4) + c^(1/4)*x)] + c^(1/8)*Sqrt[-((-2 + Sqrt[2])*x)]*ArcTanh[(a^(1/8)*c^(1/8)*Sqrt[-((-2 + Sqrt[2])*x)])/(
a^(1/4) + c^(1/4)*x)])/(4*a^(9/8)*Sqrt[x])

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Maple [C] Result contains higher order function than in optimal. Order 9 vs. order 3.
time = 0.15, size = 38, normalized size = 0.13

method	result	size
derivativedivides	\(-\frac {\munderset {\textit {\_R} =\RootOf \left (c \,\textit {\_Z}^{8}+a \right )}{\sum }\frac {\ln \left (\sqrt {x}-\textit {\_R} \right )}{\textit {\_R}}}{4 a}-\frac {2}{a \sqrt {x}}\)	\(38\)
default	\(-\frac {\munderset {\textit {\_R} =\RootOf \left (c \,\textit {\_Z}^{8}+a \right )}{\sum }\frac {\ln \left (\sqrt {x}-\textit {\_R} \right )}{\textit {\_R}}}{4 a}-\frac {2}{a \sqrt {x}}\)	\(38\)
risch	\(-\frac {\munderset {\textit {\_R} =\RootOf \left (c \,\textit {\_Z}^{8}+a \right )}{\sum }\frac {\ln \left (\sqrt {x}-\textit {\_R} \right )}{\textit {\_R}}}{4 a}-\frac {2}{a \sqrt {x}}\)	\(38\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/x^(3/2)/(c*x^4+a),x,method=_RETURNVERBOSE)

[Out]

-1/4/a*sum(1/_R*ln(x^(1/2)-_R),_R=RootOf(_Z^8*c+a))-2/a/x^(1/2)

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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x^(3/2)/(c*x^4+a),x, algorithm="maxima")

[Out]

-c*integrate(x^(5/2)/(a*c*x^4 + a^2), x) - 2/(a*sqrt(x))

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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 446 vs. \(2 (198) = 396\).
time = 0.38, size = 446, normalized size = 1.50 \begin {gather*} \frac {4 \, \sqrt {2} a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \arctan \left (-\frac {\sqrt {2} a c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} - \sqrt {2} \sqrt {\sqrt {2} a^{8} c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {7}{8}} - a^{7} c \left (-\frac {c}{a^{9}}\right )^{\frac {3}{4}} + c^{2} x} a \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} - c}{c}\right ) + 4 \, \sqrt {2} a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \arctan \left (-\frac {\sqrt {2} a c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} - \sqrt {2} \sqrt {-\sqrt {2} a^{8} c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {7}{8}} - a^{7} c \left (-\frac {c}{a^{9}}\right )^{\frac {3}{4}} + c^{2} x} a \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} + c}{c}\right ) - \sqrt {2} a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \log \left (\sqrt {2} a^{8} c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {7}{8}} - a^{7} c \left (-\frac {c}{a^{9}}\right )^{\frac {3}{4}} + c^{2} x\right ) + \sqrt {2} a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \log \left (-\sqrt {2} a^{8} c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {7}{8}} - a^{7} c \left (-\frac {c}{a^{9}}\right )^{\frac {3}{4}} + c^{2} x\right ) + 8 \, a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \arctan \left (-\frac {a c \sqrt {x} \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} - \sqrt {-a^{7} c \left (-\frac {c}{a^{9}}\right )^{\frac {3}{4}} + c^{2} x} a \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}}}{c}\right ) - 2 \, a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \log \left (a^{8} \left (-\frac {c}{a^{9}}\right )^{\frac {7}{8}} + c \sqrt {x}\right ) + 2 \, a x \left (-\frac {c}{a^{9}}\right )^{\frac {1}{8}} \log \left (-a^{8} \left (-\frac {c}{a^{9}}\right )^{\frac {7}{8}} + c \sqrt {x}\right ) - 16 \, \sqrt {x}}{8 \, a x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x^(3/2)/(c*x^4+a),x, algorithm="fricas")

[Out]

1/8*(4*sqrt(2)*a*x*(-c/a^9)^(1/8)*arctan(-(sqrt(2)*a*c*sqrt(x)*(-c/a^9)^(1/8) - sqrt(2)*sqrt(sqrt(2)*a^8*c*sqr
t(x)*(-c/a^9)^(7/8) - a^7*c*(-c/a^9)^(3/4) + c^2*x)*a*(-c/a^9)^(1/8) - c)/c) + 4*sqrt(2)*a*x*(-c/a^9)^(1/8)*ar
ctan(-(sqrt(2)*a*c*sqrt(x)*(-c/a^9)^(1/8) - sqrt(2)*sqrt(-sqrt(2)*a^8*c*sqrt(x)*(-c/a^9)^(7/8) - a^7*c*(-c/a^9
)^(3/4) + c^2*x)*a*(-c/a^9)^(1/8) + c)/c) - sqrt(2)*a*x*(-c/a^9)^(1/8)*log(sqrt(2)*a^8*c*sqrt(x)*(-c/a^9)^(7/8
) - a^7*c*(-c/a^9)^(3/4) + c^2*x) + sqrt(2)*a*x*(-c/a^9)^(1/8)*log(-sqrt(2)*a^8*c*sqrt(x)*(-c/a^9)^(7/8) - a^7
*c*(-c/a^9)^(3/4) + c^2*x) + 8*a*x*(-c/a^9)^(1/8)*arctan(-(a*c*sqrt(x)*(-c/a^9)^(1/8) - sqrt(-a^7*c*(-c/a^9)^(
3/4) + c^2*x)*a*(-c/a^9)^(1/8))/c) - 2*a*x*(-c/a^9)^(1/8)*log(a^8*(-c/a^9)^(7/8) + c*sqrt(x)) + 2*a*x*(-c/a^9)
^(1/8)*log(-a^8*(-c/a^9)^(7/8) + c*sqrt(x)) - 16*sqrt(x))/(a*x)

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Sympy [A]
time = 20.13, size = 299, normalized size = 1.01 \begin {gather*} \begin {cases} \frac {\tilde {\infty }}{x^{\frac {9}{2}}} & \text {for}\: a = 0 \wedge c = 0 \\- \frac {2}{9 c x^{\frac {9}{2}}} & \text {for}\: a = 0 \\- \frac {2}{a \sqrt {x}} & \text {for}\: c = 0 \\- \frac {\log {\left (\sqrt {x} - \sqrt [8]{- \frac {a}{c}} \right )}}{4 a \sqrt [8]{- \frac {a}{c}}} + \frac {\log {\left (\sqrt {x} + \sqrt [8]{- \frac {a}{c}} \right )}}{4 a \sqrt [8]{- \frac {a}{c}}} - \frac {\sqrt {2} \log {\left (- 4 \sqrt {2} \sqrt {x} \sqrt [8]{- \frac {a}{c}} + 4 x + 4 \sqrt [4]{- \frac {a}{c}} \right )}}{8 a \sqrt [8]{- \frac {a}{c}}} + \frac {\sqrt {2} \log {\left (4 \sqrt {2} \sqrt {x} \sqrt [8]{- \frac {a}{c}} + 4 x + 4 \sqrt [4]{- \frac {a}{c}} \right )}}{8 a \sqrt [8]{- \frac {a}{c}}} - \frac {\operatorname {atan}{\left (\frac {\sqrt {x}}{\sqrt [8]{- \frac {a}{c}}} \right )}}{2 a \sqrt [8]{- \frac {a}{c}}} - \frac {\sqrt {2} \operatorname {atan}{\left (\frac {\sqrt {2} \sqrt {x}}{\sqrt [8]{- \frac {a}{c}}} - 1 \right )}}{4 a \sqrt [8]{- \frac {a}{c}}} - \frac {\sqrt {2} \operatorname {atan}{\left (\frac {\sqrt {2} \sqrt {x}}{\sqrt [8]{- \frac {a}{c}}} + 1 \right )}}{4 a \sqrt [8]{- \frac {a}{c}}} - \frac {2}{a \sqrt {x}} & \text {otherwise} \end {cases} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x**(3/2)/(c*x**4+a),x)

[Out]

Piecewise((zoo/x**(9/2), Eq(a, 0) & Eq(c, 0)), (-2/(9*c*x**(9/2)), Eq(a, 0)), (-2/(a*sqrt(x)), Eq(c, 0)), (-lo
g(sqrt(x) - (-a/c)**(1/8))/(4*a*(-a/c)**(1/8)) + log(sqrt(x) + (-a/c)**(1/8))/(4*a*(-a/c)**(1/8)) - sqrt(2)*lo
g(-4*sqrt(2)*sqrt(x)*(-a/c)**(1/8) + 4*x + 4*(-a/c)**(1/4))/(8*a*(-a/c)**(1/8)) + sqrt(2)*log(4*sqrt(2)*sqrt(x
)*(-a/c)**(1/8) + 4*x + 4*(-a/c)**(1/4))/(8*a*(-a/c)**(1/8)) - atan(sqrt(x)/(-a/c)**(1/8))/(2*a*(-a/c)**(1/8))
- sqrt(2)*atan(sqrt(2)*sqrt(x)/(-a/c)**(1/8) - 1)/(4*a*(-a/c)**(1/8)) - sqrt(2)*atan(sqrt(2)*sqrt(x)/(-a/c)**
(1/8) + 1)/(4*a*(-a/c)**(1/8)) - 2/(a*sqrt(x)), True))

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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 461 vs. \(2 (198) = 396\).
time = 1.11, size = 461, normalized size = 1.55 \begin {gather*} -\frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \arctan \left (\frac {\sqrt {-\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} + 2 \, \sqrt {x}}{\sqrt {\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}}}\right )}{2 \, a^{2} \sqrt {-2 \, \sqrt {2} + 4}} - \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \arctan \left (-\frac {\sqrt {-\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} - 2 \, \sqrt {x}}{\sqrt {\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}}}\right )}{2 \, a^{2} \sqrt {-2 \, \sqrt {2} + 4}} - \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \arctan \left (\frac {\sqrt {\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} + 2 \, \sqrt {x}}{\sqrt {-\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}}}\right )}{2 \, a^{2} \sqrt {2 \, \sqrt {2} + 4}} - \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \arctan \left (-\frac {\sqrt {\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} - 2 \, \sqrt {x}}{\sqrt {-\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}}}\right )}{2 \, a^{2} \sqrt {2 \, \sqrt {2} + 4}} + \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \log \left (\sqrt {x} \sqrt {\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} + x + \left (\frac {a}{c}\right )^{\frac {1}{4}}\right )}{4 \, a^{2} \sqrt {-2 \, \sqrt {2} + 4}} - \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \log \left (-\sqrt {x} \sqrt {\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} + x + \left (\frac {a}{c}\right )^{\frac {1}{4}}\right )}{4 \, a^{2} \sqrt {-2 \, \sqrt {2} + 4}} + \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \log \left (\sqrt {x} \sqrt {-\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} + x + \left (\frac {a}{c}\right )^{\frac {1}{4}}\right )}{4 \, a^{2} \sqrt {2 \, \sqrt {2} + 4}} - \frac {c \left (\frac {a}{c}\right )^{\frac {7}{8}} \log \left (-\sqrt {x} \sqrt {-\sqrt {2} + 2} \left (\frac {a}{c}\right )^{\frac {1}{8}} + x + \left (\frac {a}{c}\right )^{\frac {1}{4}}\right )}{4 \, a^{2} \sqrt {2 \, \sqrt {2} + 4}} - \frac {2}{a \sqrt {x}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x^(3/2)/(c*x^4+a),x, algorithm="giac")

[Out]

-1/2*c*(a/c)^(7/8)*arctan((sqrt(-sqrt(2) + 2)*(a/c)^(1/8) + 2*sqrt(x))/(sqrt(sqrt(2) + 2)*(a/c)^(1/8)))/(a^2*s
qrt(-2*sqrt(2) + 4)) - 1/2*c*(a/c)^(7/8)*arctan(-(sqrt(-sqrt(2) + 2)*(a/c)^(1/8) - 2*sqrt(x))/(sqrt(sqrt(2) +
2)*(a/c)^(1/8)))/(a^2*sqrt(-2*sqrt(2) + 4)) - 1/2*c*(a/c)^(7/8)*arctan((sqrt(sqrt(2) + 2)*(a/c)^(1/8) + 2*sqrt
(x))/(sqrt(-sqrt(2) + 2)*(a/c)^(1/8)))/(a^2*sqrt(2*sqrt(2) + 4)) - 1/2*c*(a/c)^(7/8)*arctan(-(sqrt(sqrt(2) + 2
)*(a/c)^(1/8) - 2*sqrt(x))/(sqrt(-sqrt(2) + 2)*(a/c)^(1/8)))/(a^2*sqrt(2*sqrt(2) + 4)) + 1/4*c*(a/c)^(7/8)*log
(sqrt(x)*sqrt(sqrt(2) + 2)*(a/c)^(1/8) + x + (a/c)^(1/4))/(a^2*sqrt(-2*sqrt(2) + 4)) - 1/4*c*(a/c)^(7/8)*log(-
sqrt(x)*sqrt(sqrt(2) + 2)*(a/c)^(1/8) + x + (a/c)^(1/4))/(a^2*sqrt(-2*sqrt(2) + 4)) + 1/4*c*(a/c)^(7/8)*log(sq
rt(x)*sqrt(-sqrt(2) + 2)*(a/c)^(1/8) + x + (a/c)^(1/4))/(a^2*sqrt(2*sqrt(2) + 4)) - 1/4*c*(a/c)^(7/8)*log(-sqr
t(x)*sqrt(-sqrt(2) + 2)*(a/c)^(1/8) + x + (a/c)^(1/4))/(a^2*sqrt(2*sqrt(2) + 4)) - 2/(a*sqrt(x))

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Mupad [B]
time = 1.09, size = 126, normalized size = 0.42 \begin {gather*} -\frac {2}{a\,\sqrt {x}}-\frac {{\left (-c\right )}^{1/8}\,\mathrm {atan}\left (\frac {{\left (-c\right )}^{1/8}\,\sqrt {x}}{a^{1/8}}\right )}{2\,a^{9/8}}-\frac {{\left (-c\right )}^{1/8}\,\mathrm {atan}\left (\frac {{\left (-c\right )}^{1/8}\,\sqrt {x}\,1{}\mathrm {i}}{a^{1/8}}\right )\,1{}\mathrm {i}}{2\,a^{9/8}}+\frac {\sqrt {2}\,{\left (-c\right )}^{1/8}\,\mathrm {atan}\left (\frac {\sqrt {2}\,{\left (-c\right )}^{1/8}\,\sqrt {x}\,\left (\frac {1}{2}-\frac {1}{2}{}\mathrm {i}\right )}{a^{1/8}}\right )\,\left (-\frac {1}{4}+\frac {1}{4}{}\mathrm {i}\right )}{a^{9/8}}+\frac {\sqrt {2}\,{\left (-c\right )}^{1/8}\,\mathrm {atan}\left (\frac {\sqrt {2}\,{\left (-c\right )}^{1/8}\,\sqrt {x}\,\left (\frac {1}{2}+\frac {1}{2}{}\mathrm {i}\right )}{a^{1/8}}\right )\,\left (-\frac {1}{4}-\frac {1}{4}{}\mathrm {i}\right )}{a^{9/8}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(x^(3/2)*(a + c*x^4)),x)

[Out]

- 2/(a*x^(1/2)) - ((-c)^(1/8)*atan(((-c)^(1/8)*x^(1/2))/a^(1/8)))/(2*a^(9/8)) - ((-c)^(1/8)*atan(((-c)^(1/8)*x
^(1/2)*1i)/a^(1/8))*1i)/(2*a^(9/8)) - (2^(1/2)*(-c)^(1/8)*atan((2^(1/2)*(-c)^(1/8)*x^(1/2)*(1/2 - 1i/2))/a^(1/
8))*(1/4 - 1i/4))/a^(9/8) - (2^(1/2)*(-c)^(1/8)*atan((2^(1/2)*(-c)^(1/8)*x^(1/2)*(1/2 + 1i/2))/a^(1/8))*(1/4 +
1i/4))/a^(9/8)

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