3.719 \(\int \frac{x^{15}}{\left (a+b x^8\right ) \sqrt{c+d x^8}} \, dx\)

Optimal. Leaf size=74 \[ \frac{a \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^8}}{\sqrt{b c-a d}}\right )}{4 b^{3/2} \sqrt{b c-a d}}+\frac{\sqrt{c+d x^8}}{4 b d} \]

[Out]

Sqrt[c + d*x^8]/(4*b*d) + (a*ArcTanh[(Sqrt[b]*Sqrt[c + d*x^8])/Sqrt[b*c - a*d]])
/(4*b^(3/2)*Sqrt[b*c - a*d])

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Rubi [A]  time = 0.191704, antiderivative size = 74, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167 \[ \frac{a \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^8}}{\sqrt{b c-a d}}\right )}{4 b^{3/2} \sqrt{b c-a d}}+\frac{\sqrt{c+d x^8}}{4 b d} \]

Antiderivative was successfully verified.

[In]  Int[x^15/((a + b*x^8)*Sqrt[c + d*x^8]),x]

[Out]

Sqrt[c + d*x^8]/(4*b*d) + (a*ArcTanh[(Sqrt[b]*Sqrt[c + d*x^8])/Sqrt[b*c - a*d]])
/(4*b^(3/2)*Sqrt[b*c - a*d])

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Rubi in Sympy [A]  time = 20.4693, size = 60, normalized size = 0.81 \[ - \frac{a \operatorname{atan}{\left (\frac{\sqrt{b} \sqrt{c + d x^{8}}}{\sqrt{a d - b c}} \right )}}{4 b^{\frac{3}{2}} \sqrt{a d - b c}} + \frac{\sqrt{c + d x^{8}}}{4 b d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  rubi_integrate(x**15/(b*x**8+a)/(d*x**8+c)**(1/2),x)

[Out]

-a*atan(sqrt(b)*sqrt(c + d*x**8)/sqrt(a*d - b*c))/(4*b**(3/2)*sqrt(a*d - b*c)) +
sqrt(c + d*x**8)/(4*b*d)

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Mathematica [A]  time = 0.0904714, size = 74, normalized size = 1. \[ \frac{a \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^8}}{\sqrt{b c-a d}}\right )}{4 b^{3/2} \sqrt{b c-a d}}+\frac{\sqrt{c+d x^8}}{4 b d} \]

Antiderivative was successfully verified.

[In]  Integrate[x^15/((a + b*x^8)*Sqrt[c + d*x^8]),x]

[Out]

Sqrt[c + d*x^8]/(4*b*d) + (a*ArcTanh[(Sqrt[b]*Sqrt[c + d*x^8])/Sqrt[b*c - a*d]])
/(4*b^(3/2)*Sqrt[b*c - a*d])

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Maple [F]  time = 0.082, size = 0, normalized size = 0. \[ \int{\frac{{x}^{15}}{b{x}^{8}+a}{\frac{1}{\sqrt{d{x}^{8}+c}}}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  int(x^15/(b*x^8+a)/(d*x^8+c)^(1/2),x)

[Out]

int(x^15/(b*x^8+a)/(d*x^8+c)^(1/2),x)

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Maxima [F]  time = 0., size = 0, normalized size = 0. \[ \text{Exception raised: ValueError} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x^15/((b*x^8 + a)*sqrt(d*x^8 + c)),x, algorithm="maxima")

[Out]

Exception raised: ValueError

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Fricas [A]  time = 0.226362, size = 1, normalized size = 0.01 \[ \left [\frac{a d \log \left (\frac{{\left (b d x^{8} + 2 \, b c - a d\right )} \sqrt{b^{2} c - a b d} + 2 \, \sqrt{d x^{8} + c}{\left (b^{2} c - a b d\right )}}{b x^{8} + a}\right ) + 2 \, \sqrt{d x^{8} + c} \sqrt{b^{2} c - a b d}}{8 \, \sqrt{b^{2} c - a b d} b d}, \frac{a d \arctan \left (-\frac{b c - a d}{\sqrt{d x^{8} + c} \sqrt{-b^{2} c + a b d}}\right ) + \sqrt{d x^{8} + c} \sqrt{-b^{2} c + a b d}}{4 \, \sqrt{-b^{2} c + a b d} b d}\right ] \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x^15/((b*x^8 + a)*sqrt(d*x^8 + c)),x, algorithm="fricas")

[Out]

[1/8*(a*d*log(((b*d*x^8 + 2*b*c - a*d)*sqrt(b^2*c - a*b*d) + 2*sqrt(d*x^8 + c)*(
b^2*c - a*b*d))/(b*x^8 + a)) + 2*sqrt(d*x^8 + c)*sqrt(b^2*c - a*b*d))/(sqrt(b^2*
c - a*b*d)*b*d), 1/4*(a*d*arctan(-(b*c - a*d)/(sqrt(d*x^8 + c)*sqrt(-b^2*c + a*b
*d))) + sqrt(d*x^8 + c)*sqrt(-b^2*c + a*b*d))/(sqrt(-b^2*c + a*b*d)*b*d)]

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Sympy [F(-1)]  time = 0., size = 0, normalized size = 0. \[ \text{Timed out} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x**15/(b*x**8+a)/(d*x**8+c)**(1/2),x)

[Out]

Timed out

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GIAC/XCAS [A]  time = 0.214707, size = 86, normalized size = 1.16 \[ -\frac{\frac{a d \arctan \left (\frac{\sqrt{d x^{8} + c} b}{\sqrt{-b^{2} c + a b d}}\right )}{\sqrt{-b^{2} c + a b d} b} - \frac{\sqrt{d x^{8} + c}}{b}}{4 \, d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x^15/((b*x^8 + a)*sqrt(d*x^8 + c)),x, algorithm="giac")

[Out]

-1/4*(a*d*arctan(sqrt(d*x^8 + c)*b/sqrt(-b^2*c + a*b*d))/(sqrt(-b^2*c + a*b*d)*b
) - sqrt(d*x^8 + c)/b)/d