3.1222 \(\int \frac{1}{(a-i a x)^{13/4} (a+i a x)^{9/4}} \, dx\)

Optimal. Leaf size=121 \[ \frac{14 x}{45 a^5 \left (x^2+1\right ) \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}+\frac{14 \sqrt [4]{x^2+1} E\left (\left .\frac{1}{2} \tan ^{-1}(x)\right |2\right )}{15 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}} \]

[Out]

((-2*I)/9)/(a^2*(a - I*a*x)^(9/4)*(a + I*a*x)^(5/4)) + (14*x)/(45*a^5*(a - I*a*x)^(1/4)*(a + I*a*x)^(1/4)*(1 +
x^2)) + (14*(1 + x^2)^(1/4)*EllipticE[ArcTan[x]/2, 2])/(15*a^5*(a - I*a*x)^(1/4)*(a + I*a*x)^(1/4))

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Rubi [A]  time = 0.0257717, antiderivative size = 121, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 25, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.2, Rules used = {51, 42, 199, 197, 196} \[ \frac{14 x}{45 a^5 \left (x^2+1\right ) \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}+\frac{14 \sqrt [4]{x^2+1} E\left (\left .\frac{1}{2} \tan ^{-1}(x)\right |2\right )}{15 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}} \]

Antiderivative was successfully verified.

[In]

Int[1/((a - I*a*x)^(13/4)*(a + I*a*x)^(9/4)),x]

[Out]

((-2*I)/9)/(a^2*(a - I*a*x)^(9/4)*(a + I*a*x)^(5/4)) + (14*x)/(45*a^5*(a - I*a*x)^(1/4)*(a + I*a*x)^(1/4)*(1 +
x^2)) + (14*(1 + x^2)^(1/4)*EllipticE[ArcTan[x]/2, 2])/(15*a^5*(a - I*a*x)^(1/4)*(a + I*a*x)^(1/4))

Rule 51

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] && LtQ[m, -1] &&  !(LtQ[n, -1] && (EqQ[a, 0] || (NeQ[
c, 0] && LtQ[m - n, 0] && IntegerQ[n]))) && IntLinearQ[a, b, c, d, m, n, x]

Rule 42

Int[((a_) + (b_.)*(x_))^(m_)*((c_) + (d_.)*(x_))^(m_), x_Symbol] :> Dist[((a + b*x)^FracPart[m]*(c + d*x)^Frac
Part[m])/(a*c + b*d*x^2)^FracPart[m], Int[(a*c + b*d*x^2)^m, x], x] /; FreeQ[{a, b, c, d, m}, x] && EqQ[b*c +
a*d, 0] &&  !IntegerQ[2*m]

Rule 199

Int[((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> -Simp[(x*(a + b*x^n)^(p + 1))/(a*n*(p + 1)), x] + Dist[(n*(p +
1) + 1)/(a*n*(p + 1)), Int[(a + b*x^n)^(p + 1), x], x] /; FreeQ[{a, b}, x] && IGtQ[n, 0] && LtQ[p, -1] && (In
tegerQ[2*p] || (n == 2 && IntegerQ[4*p]) || (n == 2 && IntegerQ[3*p]) || Denominator[p + 1/n] < Denominator[p]
)

Rule 197

Int[((a_) + (b_.)*(x_)^2)^(-5/4), x_Symbol] :> Dist[(1 + (b*x^2)/a)^(1/4)/(a*(a + b*x^2)^(1/4)), Int[1/(1 + (b
*x^2)/a)^(5/4), x], x] /; FreeQ[{a, b}, x] && PosQ[a] && PosQ[b/a]

Rule 196

Int[((a_) + (b_.)*(x_)^2)^(-5/4), x_Symbol] :> Simp[(2*EllipticE[(1*ArcTan[Rt[b/a, 2]*x])/2, 2])/(a^(5/4)*Rt[b
/a, 2]), x] /; FreeQ[{a, b}, x] && GtQ[a, 0] && PosQ[b/a]

Rubi steps

\begin{align*} \int \frac{1}{(a-i a x)^{13/4} (a+i a x)^{9/4}} \, dx &=-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}}+\frac{7 \int \frac{1}{(a-i a x)^{9/4} (a+i a x)^{9/4}} \, dx}{9 a}\\ &=-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}}+\frac{\left (7 \sqrt [4]{a^2+a^2 x^2}\right ) \int \frac{1}{\left (a^2+a^2 x^2\right )^{9/4}} \, dx}{9 a \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}\\ &=-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}}+\frac{14 x}{45 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x} \left (1+x^2\right )}+\frac{\left (7 \sqrt [4]{a^2+a^2 x^2}\right ) \int \frac{1}{\left (a^2+a^2 x^2\right )^{5/4}} \, dx}{15 a^3 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}\\ &=-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}}+\frac{14 x}{45 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x} \left (1+x^2\right )}+\frac{\left (7 \sqrt [4]{1+x^2}\right ) \int \frac{1}{\left (1+x^2\right )^{5/4}} \, dx}{15 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}\\ &=-\frac{2 i}{9 a^2 (a-i a x)^{9/4} (a+i a x)^{5/4}}+\frac{14 x}{45 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x} \left (1+x^2\right )}+\frac{14 \sqrt [4]{1+x^2} E\left (\left .\frac{1}{2} \tan ^{-1}(x)\right |2\right )}{15 a^5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}\\ \end{align*}

Mathematica [C]  time = 0.0279646, size = 70, normalized size = 0.58 \[ -\frac{i \sqrt [4]{1+i x} \, _2F_1\left (-\frac{9}{4},\frac{9}{4};-\frac{5}{4};\frac{1}{2}-\frac{i x}{2}\right )}{9 \sqrt [4]{2} a^3 (a-i a x)^{9/4} \sqrt [4]{a+i a x}} \]

Antiderivative was successfully verified.

[In]

Integrate[1/((a - I*a*x)^(13/4)*(a + I*a*x)^(9/4)),x]

[Out]

((-I/9)*(1 + I*x)^(1/4)*Hypergeometric2F1[-9/4, 9/4, -5/4, 1/2 - (I/2)*x])/(2^(1/4)*a^3*(a - I*a*x)^(9/4)*(a +
I*a*x)^(1/4))

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Maple [C]  time = 0.077, size = 124, normalized size = 1. \begin{align*}{\frac{42\,i{x}^{3}+42\,{x}^{4}+56\,ix+56\,{x}^{2}+10}{ \left ( 45\,x-45\,i \right ) \left ( x+i \right ) ^{2}{a}^{5}}{\frac{1}{\sqrt [4]{-a \left ( -1+ix \right ) }}}{\frac{1}{\sqrt [4]{a \left ( 1+ix \right ) }}}}-{\frac{7\,x}{15\,{a}^{5}}{\mbox{$_2$F$_1$}({\frac{1}{4}},{\frac{1}{2}};\,{\frac{3}{2}};\,-{x}^{2})}\sqrt [4]{-{a}^{2} \left ( -1+ix \right ) \left ( 1+ix \right ) }{\frac{1}{\sqrt [4]{{a}^{2}}}}{\frac{1}{\sqrt [4]{-a \left ( -1+ix \right ) }}}{\frac{1}{\sqrt [4]{a \left ( 1+ix \right ) }}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(a-I*a*x)^(13/4)/(a+I*a*x)^(9/4),x)

[Out]

2/45*(21*I*x^3+21*x^4+28*I*x+28*x^2+5)/(x-I)/(x+I)^2/a^5/(-a*(-1+I*x))^(1/4)/(a*(1+I*x))^(1/4)-7/15/(a^2)^(1/4
)*x*hypergeom([1/4,1/2],[3/2],-x^2)/a^5*(-a^2*(-1+I*x)*(1+I*x))^(1/4)/(-a*(-1+I*x))^(1/4)/(a*(1+I*x))^(1/4)

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a-I*a*x)^(13/4)/(a+I*a*x)^(9/4),x, algorithm="maxima")

[Out]

Exception raised: RuntimeError

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Fricas [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \frac{{\left (42 \, x^{4} + 42 i \, x^{3} + 56 \, x^{2} + 56 i \, x + 10\right )}{\left (i \, a x + a\right )}^{\frac{3}{4}}{\left (-i \, a x + a\right )}^{\frac{3}{4}} +{\left (45 \, a^{7} x^{5} + 45 i \, a^{7} x^{4} + 90 \, a^{7} x^{3} + 90 i \, a^{7} x^{2} + 45 \, a^{7} x + 45 i \, a^{7}\right )}{\rm integral}\left (-\frac{7 \,{\left (i \, a x + a\right )}^{\frac{3}{4}}{\left (-i \, a x + a\right )}^{\frac{3}{4}}}{15 \,{\left (a^{7} x^{2} + a^{7}\right )}}, x\right )}{45 \, a^{7} x^{5} + 45 i \, a^{7} x^{4} + 90 \, a^{7} x^{3} + 90 i \, a^{7} x^{2} + 45 \, a^{7} x + 45 i \, a^{7}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a-I*a*x)^(13/4)/(a+I*a*x)^(9/4),x, algorithm="fricas")

[Out]

((42*x^4 + 42*I*x^3 + 56*x^2 + 56*I*x + 10)*(I*a*x + a)^(3/4)*(-I*a*x + a)^(3/4) + (45*a^7*x^5 + 45*I*a^7*x^4
+ 90*a^7*x^3 + 90*I*a^7*x^2 + 45*a^7*x + 45*I*a^7)*integral(-7/15*(I*a*x + a)^(3/4)*(-I*a*x + a)^(3/4)/(a^7*x^
2 + a^7), x))/(45*a^7*x^5 + 45*I*a^7*x^4 + 90*a^7*x^3 + 90*I*a^7*x^2 + 45*a^7*x + 45*I*a^7)

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a-I*a*x)**(13/4)/(a+I*a*x)**(9/4),x)

[Out]

Timed out

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Giac [F(-2)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: TypeError} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a-I*a*x)^(13/4)/(a+I*a*x)^(9/4),x, algorithm="giac")

[Out]

Exception raised: TypeError