3.2.98 \(\int \frac {1}{(d+e x^2)^{3/2} (d^2-e^2 x^4)} \, dx\) [198]

Optimal. Leaf size=80 \[ \frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}}+\frac {7 x}{12 d^3 \sqrt {d+e x^2}}+\frac {\tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {e} x}{\sqrt {d+e x^2}}\right )}{4 \sqrt {2} d^3 \sqrt {e}} \]

[Out]

1/6*x/d^2/(e*x^2+d)^(3/2)+1/8*arctanh(x*2^(1/2)*e^(1/2)/(e*x^2+d)^(1/2))/d^3*2^(1/2)/e^(1/2)+7/12*x/d^3/(e*x^2
+d)^(1/2)

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Rubi [A]
time = 0.05, antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, integrand size = 26, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {1164, 425, 541, 12, 385, 214} \begin {gather*} \frac {7 x}{12 d^3 \sqrt {d+e x^2}}+\frac {\tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {e} x}{\sqrt {d+e x^2}}\right )}{4 \sqrt {2} d^3 \sqrt {e}}+\frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[1/((d + e*x^2)^(3/2)*(d^2 - e^2*x^4)),x]

[Out]

x/(6*d^2*(d + e*x^2)^(3/2)) + (7*x)/(12*d^3*Sqrt[d + e*x^2]) + ArcTanh[(Sqrt[2]*Sqrt[e]*x)/Sqrt[d + e*x^2]]/(4
*Sqrt[2]*d^3*Sqrt[e])

Rule 12

Int[(a_)*(u_), x_Symbol] :> Dist[a, Int[u, x], x] /; FreeQ[a, x] &&  !MatchQ[u, (b_)*(v_) /; FreeQ[b, x]]

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 385

Int[((a_) + (b_.)*(x_)^(n_))^(p_)/((c_) + (d_.)*(x_)^(n_)), x_Symbol] :> Subst[Int[1/(c - (b*c - a*d)*x^n), x]
, x, x/(a + b*x^n)^(1/n)] /; FreeQ[{a, b, c, d}, x] && NeQ[b*c - a*d, 0] && EqQ[n*p + 1, 0] && IntegerQ[n]

Rule 425

Int[((a_) + (b_.)*(x_)^(n_))^(p_)*((c_) + (d_.)*(x_)^(n_))^(q_), x_Symbol] :> Simp[(-b)*x*(a + b*x^n)^(p + 1)*
((c + d*x^n)^(q + 1)/(a*n*(p + 1)*(b*c - a*d))), x] + Dist[1/(a*n*(p + 1)*(b*c - a*d)), Int[(a + b*x^n)^(p + 1
)*(c + d*x^n)^q*Simp[b*c + n*(p + 1)*(b*c - a*d) + d*b*(n*(p + q + 2) + 1)*x^n, x], x], x] /; FreeQ[{a, b, c,
d, n, q}, x] && NeQ[b*c - a*d, 0] && LtQ[p, -1] &&  !( !IntegerQ[p] && IntegerQ[q] && LtQ[q, -1]) && IntBinomi
alQ[a, b, c, d, n, p, q, x]

Rule 541

Int[((a_) + (b_.)*(x_)^(n_))^(p_)*((c_) + (d_.)*(x_)^(n_))^(q_.)*((e_) + (f_.)*(x_)^(n_)), x_Symbol] :> Simp[(
-(b*e - a*f))*x*(a + b*x^n)^(p + 1)*((c + d*x^n)^(q + 1)/(a*n*(b*c - a*d)*(p + 1))), x] + Dist[1/(a*n*(b*c - a
*d)*(p + 1)), Int[(a + b*x^n)^(p + 1)*(c + d*x^n)^q*Simp[c*(b*e - a*f) + e*n*(b*c - a*d)*(p + 1) + d*(b*e - a*
f)*(n*(p + q + 2) + 1)*x^n, x], x], x] /; FreeQ[{a, b, c, d, e, f, n, q}, x] && LtQ[p, -1]

Rule 1164

Int[((d_) + (e_.)*(x_)^2)^(q_.)*((a_) + (c_.)*(x_)^4)^(p_.), x_Symbol] :> Int[(d + e*x^2)^(p + q)*(a/d + (c/e)
*x^2)^p, x] /; FreeQ[{a, c, d, e, q}, x] && EqQ[c*d^2 + a*e^2, 0] && IntegerQ[p]

Rubi steps

\begin {align*} \int \frac {1}{\left (d+e x^2\right )^{3/2} \left (d^2-e^2 x^4\right )} \, dx &=\int \frac {1}{\left (d-e x^2\right ) \left (d+e x^2\right )^{5/2}} \, dx\\ &=\frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}}-\frac {\int \frac {-5 d e+2 e^2 x^2}{\left (d-e x^2\right ) \left (d+e x^2\right )^{3/2}} \, dx}{6 d^2 e}\\ &=\frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}}+\frac {7 x}{12 d^3 \sqrt {d+e x^2}}+\frac {\int \frac {3 d^2 e^2}{\left (d-e x^2\right ) \sqrt {d+e x^2}} \, dx}{12 d^4 e^2}\\ &=\frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}}+\frac {7 x}{12 d^3 \sqrt {d+e x^2}}+\frac {\int \frac {1}{\left (d-e x^2\right ) \sqrt {d+e x^2}} \, dx}{4 d^2}\\ &=\frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}}+\frac {7 x}{12 d^3 \sqrt {d+e x^2}}+\frac {\text {Subst}\left (\int \frac {1}{d-2 d e x^2} \, dx,x,\frac {x}{\sqrt {d+e x^2}}\right )}{4 d^2}\\ &=\frac {x}{6 d^2 \left (d+e x^2\right )^{3/2}}+\frac {7 x}{12 d^3 \sqrt {d+e x^2}}+\frac {\tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {e} x}{\sqrt {d+e x^2}}\right )}{4 \sqrt {2} d^3 \sqrt {e}}\\ \end {align*}

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Mathematica [A]
time = 0.15, size = 80, normalized size = 1.00 \begin {gather*} \frac {\frac {2 \left (9 d x+7 e x^3\right )}{\left (d+e x^2\right )^{3/2}}+\frac {3 \sqrt {2} \tanh ^{-1}\left (\frac {d-e x^2+\sqrt {e} x \sqrt {d+e x^2}}{\sqrt {2} d}\right )}{\sqrt {e}}}{24 d^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[1/((d + e*x^2)^(3/2)*(d^2 - e^2*x^4)),x]

[Out]

((2*(9*d*x + 7*e*x^3))/(d + e*x^2)^(3/2) + (3*Sqrt[2]*ArcTanh[(d - e*x^2 + Sqrt[e]*x*Sqrt[d + e*x^2])/(Sqrt[2]
*d)])/Sqrt[e])/(24*d^3)

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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(864\) vs. \(2(60)=120\).
time = 0.21, size = 865, normalized size = 10.81

method	result	size
default	\(-\frac {e \left (\frac {1}{3 \sqrt {-d e}\, \left (x +\frac {\sqrt {-d e}}{e}\right ) \sqrt {e \left (x +\frac {\sqrt {-d e}}{e}\right )^{2}-2 \sqrt {-d e}\, \left (x +\frac {\sqrt {-d e}}{e}\right )}}+\frac {2 e \left (x +\frac {\sqrt {-d e}}{e}\right )-2 \sqrt {-d e}}{3 \sqrt {-d e}\, d \sqrt {e \left (x +\frac {\sqrt {-d e}}{e}\right )^{2}-2 \sqrt {-d e}\, \left (x +\frac {\sqrt {-d e}}{e}\right )}}\right )}{2 \sqrt {-d e}\, \left (\sqrt {d e}-\sqrt {-d e}\right ) \left (\sqrt {d e}+\sqrt {-d e}\right )}-\frac {e \left (\frac {1}{2 d \sqrt {e \left (x -\frac {\sqrt {d e}}{e}\right )^{2}+2 \sqrt {d e}\, \left (x -\frac {\sqrt {d e}}{e}\right )+2 d}}-\frac {\sqrt {d e}\, \left (2 e \left (x -\frac {\sqrt {d e}}{e}\right )+2 \sqrt {d e}\right )}{4 d^{2} e \sqrt {e \left (x -\frac {\sqrt {d e}}{e}\right )^{2}+2 \sqrt {d e}\, \left (x -\frac {\sqrt {d e}}{e}\right )+2 d}}-\frac {\sqrt {2}\, \ln \left (\frac {4 d +2 \sqrt {d e}\, \left (x -\frac {\sqrt {d e}}{e}\right )+2 \sqrt {2}\, \sqrt {d}\, \sqrt {e \left (x -\frac {\sqrt {d e}}{e}\right )^{2}+2 \sqrt {d e}\, \left (x -\frac {\sqrt {d e}}{e}\right )+2 d}}{x -\frac {\sqrt {d e}}{e}}\right )}{4 d^{\frac {3}{2}}}\right )}{2 \left (\sqrt {d e}-\sqrt {-d e}\right ) \left (\sqrt {d e}+\sqrt {-d e}\right ) \sqrt {d e}}+\frac {e \left (\frac {1}{2 d \sqrt {e \left (x +\frac {\sqrt {d e}}{e}\right )^{2}-2 \sqrt {d e}\, \left (x +\frac {\sqrt {d e}}{e}\right )+2 d}}+\frac {\sqrt {d e}\, \left (2 e \left (x +\frac {\sqrt {d e}}{e}\right )-2 \sqrt {d e}\right )}{4 d^{2} e \sqrt {e \left (x +\frac {\sqrt {d e}}{e}\right )^{2}-2 \sqrt {d e}\, \left (x +\frac {\sqrt {d e}}{e}\right )+2 d}}-\frac {\sqrt {2}\, \ln \left (\frac {4 d -2 \sqrt {d e}\, \left (x +\frac {\sqrt {d e}}{e}\right )+2 \sqrt {2}\, \sqrt {d}\, \sqrt {e \left (x +\frac {\sqrt {d e}}{e}\right )^{2}-2 \sqrt {d e}\, \left (x +\frac {\sqrt {d e}}{e}\right )+2 d}}{x +\frac {\sqrt {d e}}{e}}\right )}{4 d^{\frac {3}{2}}}\right )}{2 \left (\sqrt {d e}-\sqrt {-d e}\right ) \left (\sqrt {d e}+\sqrt {-d e}\right ) \sqrt {d e}}+\frac {e \left (-\frac {1}{3 \sqrt {-d e}\, \left (x -\frac {\sqrt {-d e}}{e}\right ) \sqrt {e \left (x -\frac {\sqrt {-d e}}{e}\right )^{2}+2 \sqrt {-d e}\, \left (x -\frac {\sqrt {-d e}}{e}\right )}}-\frac {2 e \left (x -\frac {\sqrt {-d e}}{e}\right )+2 \sqrt {-d e}}{3 \sqrt {-d e}\, d \sqrt {e \left (x -\frac {\sqrt {-d e}}{e}\right )^{2}+2 \sqrt {-d e}\, \left (x -\frac {\sqrt {-d e}}{e}\right )}}\right )}{2 \sqrt {-d e}\, \left (\sqrt {d e}-\sqrt {-d e}\right ) \left (\sqrt {d e}+\sqrt {-d e}\right )}\)	\(865\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(e*x^2+d)^(3/2)/(-e^2*x^4+d^2),x,method=_RETURNVERBOSE)

[Out]

-1/2*e/(-d*e)^(1/2)/((d*e)^(1/2)-(-d*e)^(1/2))/((d*e)^(1/2)+(-d*e)^(1/2))*(1/3/(-d*e)^(1/2)/(x+1/e*(-d*e)^(1/2
))/(e*(x+1/e*(-d*e)^(1/2))^2-2*(-d*e)^(1/2)*(x+1/e*(-d*e)^(1/2)))^(1/2)+1/3/(-d*e)^(1/2)*(2*e*(x+1/e*(-d*e)^(1
/2))-2*(-d*e)^(1/2))/d/(e*(x+1/e*(-d*e)^(1/2))^2-2*(-d*e)^(1/2)*(x+1/e*(-d*e)^(1/2)))^(1/2))-1/2*e/((d*e)^(1/2
)-(-d*e)^(1/2))/((d*e)^(1/2)+(-d*e)^(1/2))/(d*e)^(1/2)*(1/2/d/(e*(x-1/e*(d*e)^(1/2))^2+2*(d*e)^(1/2)*(x-1/e*(d
*e)^(1/2))+2*d)^(1/2)-1/4*(d*e)^(1/2)/d^2*(2*e*(x-1/e*(d*e)^(1/2))+2*(d*e)^(1/2))/e/(e*(x-1/e*(d*e)^(1/2))^2+2
*(d*e)^(1/2)*(x-1/e*(d*e)^(1/2))+2*d)^(1/2)-1/4/d^(3/2)*2^(1/2)*ln((4*d+2*(d*e)^(1/2)*(x-1/e*(d*e)^(1/2))+2*2^
(1/2)*d^(1/2)*(e*(x-1/e*(d*e)^(1/2))^2+2*(d*e)^(1/2)*(x-1/e*(d*e)^(1/2))+2*d)^(1/2))/(x-1/e*(d*e)^(1/2))))+1/2
*e/((d*e)^(1/2)-(-d*e)^(1/2))/((d*e)^(1/2)+(-d*e)^(1/2))/(d*e)^(1/2)*(1/2/d/(e*(x+1/e*(d*e)^(1/2))^2-2*(d*e)^(
1/2)*(x+1/e*(d*e)^(1/2))+2*d)^(1/2)+1/4*(d*e)^(1/2)/d^2*(2*e*(x+1/e*(d*e)^(1/2))-2*(d*e)^(1/2))/e/(e*(x+1/e*(d
*e)^(1/2))^2-2*(d*e)^(1/2)*(x+1/e*(d*e)^(1/2))+2*d)^(1/2)-1/4/d^(3/2)*2^(1/2)*ln((4*d-2*(d*e)^(1/2)*(x+1/e*(d*
e)^(1/2))+2*2^(1/2)*d^(1/2)*(e*(x+1/e*(d*e)^(1/2))^2-2*(d*e)^(1/2)*(x+1/e*(d*e)^(1/2))+2*d)^(1/2))/(x+1/e*(d*e
)^(1/2))))+1/2*e/(-d*e)^(1/2)/((d*e)^(1/2)-(-d*e)^(1/2))/((d*e)^(1/2)+(-d*e)^(1/2))*(-1/3/(-d*e)^(1/2)/(x-1/e*
(-d*e)^(1/2))/(e*(x-1/e*(-d*e)^(1/2))^2+2*(-d*e)^(1/2)*(x-1/e*(-d*e)^(1/2)))^(1/2)-1/3/(-d*e)^(1/2)*(2*e*(x-1/
e*(-d*e)^(1/2))+2*(-d*e)^(1/2))/d/(e*(x-1/e*(-d*e)^(1/2))^2+2*(-d*e)^(1/2)*(x-1/e*(-d*e)^(1/2)))^(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/(e*x^2+d)^(3/2)/(-e^2*x^4+d^2),x, algorithm="maxima")

[Out]

-integrate(1/((x^4*e^2 - d^2)*(x^2*e + d)^(3/2)), x)

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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 151 vs. \(2 (61) = 122\).
time = 0.35, size = 151, normalized size = 1.89 \begin {gather*} \frac {3 \, \sqrt {2} {\left (x^{4} e^{2} + 2 \, d x^{2} e + d^{2}\right )} e^{\frac {1}{2}} \log \left (\frac {17 \, x^{4} e^{2} + 14 \, d x^{2} e + 4 \, \sqrt {2} {\left (3 \, x^{3} e + d x\right )} \sqrt {x^{2} e + d} e^{\frac {1}{2}} + d^{2}}{x^{4} e^{2} - 2 \, d x^{2} e + d^{2}}\right ) + 8 \, {\left (7 \, x^{3} e^{2} + 9 \, d x e\right )} \sqrt {x^{2} e + d}}{96 \, {\left (d^{3} x^{4} e^{3} + 2 \, d^{4} x^{2} e^{2} + d^{5} e\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(e*x^2+d)^(3/2)/(-e^2*x^4+d^2),x, algorithm="fricas")

[Out]

1/96*(3*sqrt(2)*(x^4*e^2 + 2*d*x^2*e + d^2)*e^(1/2)*log((17*x^4*e^2 + 14*d*x^2*e + 4*sqrt(2)*(3*x^3*e + d*x)*s
qrt(x^2*e + d)*e^(1/2) + d^2)/(x^4*e^2 - 2*d*x^2*e + d^2)) + 8*(7*x^3*e^2 + 9*d*x*e)*sqrt(x^2*e + d))/(d^3*x^4
*e^3 + 2*d^4*x^2*e^2 + d^5*e)

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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} - \int \frac {1}{- d^{3} \sqrt {d + e x^{2}} - d^{2} e x^{2} \sqrt {d + e x^{2}} + d e^{2} x^{4} \sqrt {d + e x^{2}} + e^{3} x^{6} \sqrt {d + e x^{2}}}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(e*x**2+d)**(3/2)/(-e**2*x**4+d**2),x)

[Out]

-Integral(1/(-d**3*sqrt(d + e*x**2) - d**2*e*x**2*sqrt(d + e*x**2) + d*e**2*x**4*sqrt(d + e*x**2) + e**3*x**6*
sqrt(d + e*x**2)), x)

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Giac [A]
time = 3.88, size = 114, normalized size = 1.42 \begin {gather*} \frac {x {\left (\frac {7 \, x^{2} e}{d^{3}} + \frac {9}{d^{2}}\right )}}{12 \, {\left (x^{2} e + d\right )}^{\frac {3}{2}}} + \frac {\sqrt {2} e^{\left (-\frac {1}{2}\right )} \log \left (\frac {{\left | 2 \, {\left (x e^{\frac {1}{2}} - \sqrt {x^{2} e + d}\right )}^{2} - 4 \, \sqrt {2} {\left | d \right |} - 6 \, d \right |}}{{\left | 2 \, {\left (x e^{\frac {1}{2}} - \sqrt {x^{2} e + d}\right )}^{2} + 4 \, \sqrt {2} {\left | d \right |} - 6 \, d \right |}}\right )}{16 \, d^{2} {\left | d \right |}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(e*x^2+d)^(3/2)/(-e^2*x^4+d^2),x, algorithm="giac")

[Out]

1/12*x*(7*x^2*e/d^3 + 9/d^2)/(x^2*e + d)^(3/2) + 1/16*sqrt(2)*e^(-1/2)*log(abs(2*(x*e^(1/2) - sqrt(x^2*e + d))
^2 - 4*sqrt(2)*abs(d) - 6*d)/abs(2*(x*e^(1/2) - sqrt(x^2*e + d))^2 + 4*sqrt(2)*abs(d) - 6*d))/(d^2*abs(d))

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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {1}{\left (d^2-e^2\,x^4\right )\,{\left (e\,x^2+d\right )}^{3/2}} \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/((d^2 - e^2*x^4)*(d + e*x^2)^(3/2)),x)

[Out]

int(1/((d^2 - e^2*x^4)*(d + e*x^2)^(3/2)), x)

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