3.21.14 \(\int \frac {(d+e x)^{3/2}}{(a d e+(c d^2+a e^2) x+c d e x^2)^2} \, dx\) [2014]

Optimal. Leaf size=101 \[ -\frac {\sqrt {d+e x}}{\left (c d^2-a e^2\right ) (a e+c d x)}+\frac {e \tanh ^{-1}\left (\frac {\sqrt {c} \sqrt {d} \sqrt {d+e x}}{\sqrt {c d^2-a e^2}}\right )}{\sqrt {c} \sqrt {d} \left (c d^2-a e^2\right )^{3/2}} \]

[Out]

e*arctanh(c^(1/2)*d^(1/2)*(e*x+d)^(1/2)/(-a*e^2+c*d^2)^(1/2))/(-a*e^2+c*d^2)^(3/2)/c^(1/2)/d^(1/2)-(e*x+d)^(1/
2)/(-a*e^2+c*d^2)/(c*d*x+a*e)

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Rubi [A]
time = 0.04, antiderivative size = 101, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, integrand size = 37, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.108, Rules used = {640, 44, 65, 214} \begin {gather*} \frac {e \tanh ^{-1}\left (\frac {\sqrt {c} \sqrt {d} \sqrt {d+e x}}{\sqrt {c d^2-a e^2}}\right )}{\sqrt {c} \sqrt {d} \left (c d^2-a e^2\right )^{3/2}}-\frac {\sqrt {d+e x}}{\left (c d^2-a e^2\right ) (a e+c d x)} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(d + e*x)^(3/2)/(a*d*e + (c*d^2 + a*e^2)*x + c*d*e*x^2)^2,x]

[Out]

-(Sqrt[d + e*x]/((c*d^2 - a*e^2)*(a*e + c*d*x))) + (e*ArcTanh[(Sqrt[c]*Sqrt[d]*Sqrt[d + e*x])/Sqrt[c*d^2 - a*e
^2]])/(Sqrt[c]*Sqrt[d]*(c*d^2 - a*e^2)^(3/2))

Rule 44

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

Rule 65

Int[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_), x_Symbol] :> With[{p = Denominator[m]}, Dist[p/b, Sub
st[Int[x^(p*(m + 1) - 1)*(c - a*(d/b) + d*(x^p/b))^n, x], x, (a + b*x)^(1/p)], x]] /; FreeQ[{a, b, c, d}, x] &
& NeQ[b*c - a*d, 0] && LtQ[-1, m, 0] && LeQ[-1, n, 0] && LeQ[Denominator[n], Denominator[m]] && IntLinearQ[a,
b, c, d, m, n, 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 640

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

Rubi steps

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

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Mathematica [A]
time = 0.18, size = 100, normalized size = 0.99 \begin {gather*} \frac {\sqrt {d+e x}}{\left (-c d^2+a e^2\right ) (a e+c d x)}+\frac {e \tan ^{-1}\left (\frac {\sqrt {c} \sqrt {d} \sqrt {d+e x}}{\sqrt {-c d^2+a e^2}}\right )}{\sqrt {c} \sqrt {d} \left (-c d^2+a e^2\right )^{3/2}} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(d + e*x)^(3/2)/(a*d*e + (c*d^2 + a*e^2)*x + c*d*e*x^2)^2,x]

[Out]

Sqrt[d + e*x]/((-(c*d^2) + a*e^2)*(a*e + c*d*x)) + (e*ArcTan[(Sqrt[c]*Sqrt[d]*Sqrt[d + e*x])/Sqrt[-(c*d^2) + a
*e^2]])/(Sqrt[c]*Sqrt[d]*(-(c*d^2) + a*e^2)^(3/2))

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Maple [A]
time = 0.72, size = 111, normalized size = 1.10

method	result	size
derivativedivides	\(2 e \left (\frac {\sqrt {e x +d}}{2 \left (e^{2} a -c \,d^{2}\right ) \left (c d \left (e x +d \right )+e^{2} a -c \,d^{2}\right )}+\frac {\arctan \left (\frac {c d \sqrt {e x +d}}{\sqrt {\left (e^{2} a -c \,d^{2}\right ) c d}}\right )}{2 \left (e^{2} a -c \,d^{2}\right ) \sqrt {\left (e^{2} a -c \,d^{2}\right ) c d}}\right )\)	\(111\)
default	\(2 e \left (\frac {\sqrt {e x +d}}{2 \left (e^{2} a -c \,d^{2}\right ) \left (c d \left (e x +d \right )+e^{2} a -c \,d^{2}\right )}+\frac {\arctan \left (\frac {c d \sqrt {e x +d}}{\sqrt {\left (e^{2} a -c \,d^{2}\right ) c d}}\right )}{2 \left (e^{2} a -c \,d^{2}\right ) \sqrt {\left (e^{2} a -c \,d^{2}\right ) c d}}\right )\)	\(111\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2*e*(1/2*(e*x+d)^(1/2)/(a*e^2-c*d^2)/(c*d*(e*x+d)+e^2*a-c*d^2)+1/2/(a*e^2-c*d^2)/((a*e^2-c*d^2)*c*d)^(1/2)*arc
tan(c*d*(e*x+d)^(1/2)/((a*e^2-c*d^2)*c*d)^(1/2)))

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Maxima [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: ValueError} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

Exception raised: ValueError >> Computation failed since Maxima requested additional constraints; using the 'a
ssume' command before evaluation *may* help (example of legal syntax is 'assume(c*d^2-%e^2*a>0)', see `assume?
` for more d

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Fricas [A]
time = 2.88, size = 347, normalized size = 3.44 \begin {gather*} \left [-\frac {\sqrt {c^{2} d^{3} - a c d e^{2}} {\left (c d x e + a e^{2}\right )} \log \left (\frac {c d x e + 2 \, c d^{2} - a e^{2} - 2 \, \sqrt {c^{2} d^{3} - a c d e^{2}} \sqrt {x e + d}}{c d x + a e}\right ) + 2 \, {\left (c^{2} d^{3} - a c d e^{2}\right )} \sqrt {x e + d}}{2 \, {\left (c^{4} d^{6} x - 2 \, a c^{3} d^{4} x e^{2} + a c^{3} d^{5} e + a^{2} c^{2} d^{2} x e^{4} - 2 \, a^{2} c^{2} d^{3} e^{3} + a^{3} c d e^{5}\right )}}, -\frac {\sqrt {-c^{2} d^{3} + a c d e^{2}} {\left (c d x e + a e^{2}\right )} \arctan \left (\frac {\sqrt {-c^{2} d^{3} + a c d e^{2}} \sqrt {x e + d}}{c d x e + c d^{2}}\right ) + {\left (c^{2} d^{3} - a c d e^{2}\right )} \sqrt {x e + d}}{c^{4} d^{6} x - 2 \, a c^{3} d^{4} x e^{2} + a c^{3} d^{5} e + a^{2} c^{2} d^{2} x e^{4} - 2 \, a^{2} c^{2} d^{3} e^{3} + a^{3} c d e^{5}}\right ] \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

[-1/2*(sqrt(c^2*d^3 - a*c*d*e^2)*(c*d*x*e + a*e^2)*log((c*d*x*e + 2*c*d^2 - a*e^2 - 2*sqrt(c^2*d^3 - a*c*d*e^2
)*sqrt(x*e + d))/(c*d*x + a*e)) + 2*(c^2*d^3 - a*c*d*e^2)*sqrt(x*e + d))/(c^4*d^6*x - 2*a*c^3*d^4*x*e^2 + a*c^
3*d^5*e + a^2*c^2*d^2*x*e^4 - 2*a^2*c^2*d^3*e^3 + a^3*c*d*e^5), -(sqrt(-c^2*d^3 + a*c*d*e^2)*(c*d*x*e + a*e^2)
*arctan(sqrt(-c^2*d^3 + a*c*d*e^2)*sqrt(x*e + d)/(c*d*x*e + c*d^2)) + (c^2*d^3 - a*c*d*e^2)*sqrt(x*e + d))/(c^
4*d^6*x - 2*a*c^3*d^4*x*e^2 + a*c^3*d^5*e + a^2*c^2*d^2*x*e^4 - 2*a^2*c^2*d^3*e^3 + a^3*c*d*e^5)]

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Sympy [F(-1)] Timed out
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x+d)**(3/2)/(a*d*e+(a*e**2+c*d**2)*x+c*d*e*x**2)**2,x)

[Out]

Timed out

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Giac [A]
time = 1.24, size = 111, normalized size = 1.10 \begin {gather*} -\frac {\arctan \left (\frac {\sqrt {x e + d} c d}{\sqrt {-c^{2} d^{3} + a c d e^{2}}}\right ) e}{\sqrt {-c^{2} d^{3} + a c d e^{2}} {\left (c d^{2} - a e^{2}\right )}} - \frac {\sqrt {x e + d} e}{{\left ({\left (x e + d\right )} c d - c d^{2} + a e^{2}\right )} {\left (c d^{2} - a e^{2}\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-arctan(sqrt(x*e + d)*c*d/sqrt(-c^2*d^3 + a*c*d*e^2))*e/(sqrt(-c^2*d^3 + a*c*d*e^2)*(c*d^2 - a*e^2)) - sqrt(x*
e + d)*e/(((x*e + d)*c*d - c*d^2 + a*e^2)*(c*d^2 - a*e^2))

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Mupad [B]
time = 0.66, size = 97, normalized size = 0.96 \begin {gather*} \frac {e\,\mathrm {atan}\left (\frac {c\,d\,\sqrt {d+e\,x}}{\sqrt {c\,d}\,\sqrt {a\,e^2-c\,d^2}}\right )}{\sqrt {c\,d}\,{\left (a\,e^2-c\,d^2\right )}^{3/2}}+\frac {e\,\sqrt {d+e\,x}}{\left (a\,e^2-c\,d^2\right )\,\left (a\,e^2-c\,d^2+c\,d\,\left (d+e\,x\right )\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((d + e*x)^(3/2)/(x*(a*e^2 + c*d^2) + a*d*e + c*d*e*x^2)^2,x)

[Out]

(e*atan((c*d*(d + e*x)^(1/2))/((c*d)^(1/2)*(a*e^2 - c*d^2)^(1/2))))/((c*d)^(1/2)*(a*e^2 - c*d^2)^(3/2)) + (e*(
d + e*x)^(1/2))/((a*e^2 - c*d^2)*(a*e^2 - c*d^2 + c*d*(d + e*x)))

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