3.1171 \(\int \frac {(a-i a x)^{7/4}}{\sqrt [4]{a+i a x}} \, dx\)

Optimal. Leaf size=144 \[ -\frac {14 a^2 \sqrt [4]{x^2+1} E\left (\left .\frac {1}{2} \tan ^{-1}(x)\right |2\right )}{5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}+\frac {14 a^2 x}{5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}-\frac {14}{15} i (a-i a x)^{3/4} (a+i a x)^{3/4}-\frac {2 i (a-i a x)^{7/4} (a+i a x)^{3/4}}{5 a} \]

[Out]

14/5*a^2*x/(a-I*a*x)^(1/4)/(a+I*a*x)^(1/4)-14/15*I*(a-I*a*x)^(3/4)*(a+I*a*x)^(3/4)-2/5*I*(a-I*a*x)^(7/4)*(a+I*
a*x)^(3/4)/a-14/5*a^2*(x^2+1)^(1/4)*(cos(1/2*arctan(x))^2)^(1/2)/cos(1/2*arctan(x))*EllipticE(sin(1/2*arctan(x
)),2^(1/2))/(a-I*a*x)^(1/4)/(a+I*a*x)^(1/4)

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Rubi [A]  time = 0.03, antiderivative size = 144, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {50, 42, 229, 227, 196} \[ -\frac {14 a^2 \sqrt [4]{x^2+1} E\left (\left .\frac {1}{2} \tan ^{-1}(x)\right |2\right )}{5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}+\frac {14 a^2 x}{5 \sqrt [4]{a-i a x} \sqrt [4]{a+i a x}}-\frac {14}{15} i (a-i a x)^{3/4} (a+i a x)^{3/4}-\frac {2 i (a-i a x)^{7/4} (a+i a x)^{3/4}}{5 a} \]

Antiderivative was successfully verified.

[In]

Int[(a - I*a*x)^(7/4)/(a + I*a*x)^(1/4),x]

[Out]

(14*a^2*x)/(5*(a - I*a*x)^(1/4)*(a + I*a*x)^(1/4)) - ((14*I)/15)*(a - I*a*x)^(3/4)*(a + I*a*x)^(3/4) - (((2*I)
/5)*(a - I*a*x)^(7/4)*(a + I*a*x)^(3/4))/a - (14*a^2*(1 + x^2)^(1/4)*EllipticE[ArcTan[x]/2, 2])/(5*(a - I*a*x)
^(1/4)*(a + I*a*x)^(1/4))

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 50

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

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]

Rule 227

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

Rule 229

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

Rubi steps

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

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Mathematica [C]  time = 0.04, size = 70, normalized size = 0.49 \[ \frac {2 i 2^{3/4} \sqrt [4]{1+i x} (a-i a x)^{11/4} \, _2F_1\left (\frac {1}{4},\frac {11}{4};\frac {15}{4};\frac {1}{2}-\frac {i x}{2}\right )}{11 a \sqrt [4]{a+i a x}} \]

Antiderivative was successfully verified.

[In]

Integrate[(a - I*a*x)^(7/4)/(a + I*a*x)^(1/4),x]

[Out]

(((2*I)/11)*2^(3/4)*(1 + I*x)^(1/4)*(a - I*a*x)^(11/4)*Hypergeometric2F1[1/4, 11/4, 15/4, 1/2 - (I/2)*x])/(a*(
a + I*a*x)^(1/4))

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fricas [F]  time = 0.48, size = 0, normalized size = 0.00 \[ -\frac {2 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {3}{4}} {\left (3 \, x^{2} + 10 i \, x - 21\right )} - 15 \, x {\rm integral}\left (\frac {14 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {3}{4}}}{5 \, {\left (x^{4} + x^{2}\right )}}, x\right )}{15 \, x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a-I*a*x)^(7/4)/(a+I*a*x)^(1/4),x, algorithm="fricas")

[Out]

-1/15*(2*(I*a*x + a)^(3/4)*(-I*a*x + a)^(3/4)*(3*x^2 + 10*I*x - 21) - 15*x*integral(14/5*(I*a*x + a)^(3/4)*(-I
*a*x + a)^(3/4)/(x^4 + x^2), x))/x

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giac [F(-2)]  time = 0.00, size = 0, normalized size = 0.00 \[ \text {Exception raised: RuntimeError} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a-I*a*x)^(7/4)/(a+I*a*x)^(1/4),x, algorithm="giac")

[Out]

Exception raised: RuntimeError >> An error occurred running a Giac command:INPUT:sage2OUTPUT:Warning, choosing
root of [1,0,0,0,%%%{-2,[1,0]%%%}+%%%{1,[0,4]%%%}] at parameters values [-49,-86]Warning, choosing root of [1
,0,0,0,%%%{-2,[1,0]%%%}+%%%{1,[0,4]%%%}] at parameters values [-64,-30]Warning, choosing root of [1,0,0,0,%%%{
-2,[1,0]%%%}+%%%{1,[0,4]%%%}] at parameters values [70,22]Warning, choosing root of [1,0,0,0,%%%{-2,[1,0]%%%}+
%%%{1,[0,4]%%%}] at parameters values [42,56]ext_reduce Error: Bad Argument TypeEvaluation time: 0.58integrate
(i/4*a*(-i)/a^2*(16*i*((i*a*x+a)^(1/4))^6*((2*a-((i*a*x+a)^(1/4))^4)^(1/4))^3+(-32*i)*a*((i*a*x+a)^(1/4))^2*((
2*a-((i*a*x+a)^(1/4))^4)^(1/4))^3)/4*i*a*((i*a*x+a)^(1/4))^-3,x)

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maple [C]  time = 0.10, size = 104, normalized size = 0.72 \[ \frac {7 \left (-\left (i x -1\right ) \left (i x +1\right ) a^{2}\right )^{\frac {1}{4}} a^{2} x \hypergeom \left (\left [\frac {1}{4}, \frac {1}{2}\right ], \left [\frac {3}{2}\right ], -x^{2}\right )}{5 \left (a^{2}\right )^{\frac {1}{4}} \left (-\left (i x -1\right ) a \right )^{\frac {1}{4}} \left (\left (i x +1\right ) a \right )^{\frac {1}{4}}}-\frac {2 \left (3 x +10 i\right ) \left (x -i\right ) \left (x +i\right ) a^{2}}{15 \left (-\left (i x -1\right ) a \right )^{\frac {1}{4}} \left (\left (i x +1\right ) a \right )^{\frac {1}{4}}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a-I*a*x)^(7/4)/(a+I*a*x)^(1/4),x)

[Out]

-2/15*(10*I+3*x)*(x-I)*(x+I)*a^2/(-a*(-1+I*x))^(1/4)/(a*(I*x+1))^(1/4)+7/5/(a^2)^(1/4)*x*hypergeom([1/4,1/2],[
3/2],-x^2)*a^2*(-a^2*(-1+I*x)*(I*x+1))^(1/4)/(-a*(-1+I*x))^(1/4)/(a*(I*x+1))^(1/4)

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {{\left (-i \, a x + a\right )}^{\frac {7}{4}}}{{\left (i \, a x + a\right )}^{\frac {1}{4}}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a-I*a*x)^(7/4)/(a+I*a*x)^(1/4),x, algorithm="maxima")

[Out]

integrate((-I*a*x + a)^(7/4)/(I*a*x + a)^(1/4), x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.01 \[ \int \frac {{\left (a-a\,x\,1{}\mathrm {i}\right )}^{7/4}}{{\left (a+a\,x\,1{}\mathrm {i}\right )}^{1/4}} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a - a*x*1i)^(7/4)/(a + a*x*1i)^(1/4),x)

[Out]

int((a - a*x*1i)^(7/4)/(a + a*x*1i)^(1/4), x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\left (- i a \left (x + i\right )\right )^{\frac {7}{4}}}{\sqrt [4]{i a \left (x - i\right )}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a-I*a*x)**(7/4)/(a+I*a*x)**(1/4),x)

[Out]

Integral((-I*a*(x + I))**(7/4)/(I*a*(x - I))**(1/4), x)

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