3.1.12 \(\int \frac {1}{(a+a \sin (c+d x))^{2/3}} \, dx\) [12]

Optimal. Leaf size=66 \[ -\frac {\cos (c+d x) \, _2F_1\left (\frac {1}{2},\frac {7}{6};\frac {3}{2};\frac {1}{2} (1-\sin (c+d x))\right ) \sqrt [6]{1+\sin (c+d x)}}{\sqrt [6]{2} d (a+a \sin (c+d x))^{2/3}} \]

[Out]

-1/2*cos(d*x+c)*hypergeom([1/2, 7/6],[3/2],1/2-1/2*sin(d*x+c))*(1+sin(d*x+c))^(1/6)*2^(5/6)/d/(a+a*sin(d*x+c))
^(2/3)

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Rubi [A]
time = 0.02, antiderivative size = 66, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {2731, 2730} \begin {gather*} -\frac {\sqrt [6]{\sin (c+d x)+1} \cos (c+d x) \, _2F_1\left (\frac {1}{2},\frac {7}{6};\frac {3}{2};\frac {1}{2} (1-\sin (c+d x))\right )}{\sqrt [6]{2} d (a \sin (c+d x)+a)^{2/3}} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(a + a*Sin[c + d*x])^(-2/3),x]

[Out]

-((Cos[c + d*x]*Hypergeometric2F1[1/2, 7/6, 3/2, (1 - Sin[c + d*x])/2]*(1 + Sin[c + d*x])^(1/6))/(2^(1/6)*d*(a
+ a*Sin[c + d*x])^(2/3)))

Rule 2730

Int[((a_) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[(-2^(n + 1/2))*a^(n - 1/2)*b*(Cos[c + d*x]/
(d*Sqrt[a + b*Sin[c + d*x]]))*Hypergeometric2F1[1/2, 1/2 - n, 3/2, (1/2)*(1 - b*(Sin[c + d*x]/a))], x] /; Free
Q[{a, b, c, d, n}, x] && EqQ[a^2 - b^2, 0] &&  !IntegerQ[2*n] && GtQ[a, 0]

Rule 2731

Int[((a_) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Dist[a^IntPart[n]*((a + b*Sin[c + d*x])^FracPart
[n]/(1 + (b/a)*Sin[c + d*x])^FracPart[n]), Int[(1 + (b/a)*Sin[c + d*x])^n, x], x] /; FreeQ[{a, b, c, d, n}, x]
&& EqQ[a^2 - b^2, 0] &&  !IntegerQ[2*n] &&  !GtQ[a, 0]

Rubi steps

\begin {align*} \int \frac {1}{(a+a \sin (c+d x))^{2/3}} \, dx &=\frac {(1+\sin (c+d x))^{2/3} \int \frac {1}{(1+\sin (c+d x))^{2/3}} \, dx}{(a+a \sin (c+d x))^{2/3}}\\ &=-\frac {\cos (c+d x) \, _2F_1\left (\frac {1}{2},\frac {7}{6};\frac {3}{2};\frac {1}{2} (1-\sin (c+d x))\right ) \sqrt [6]{1+\sin (c+d x)}}{\sqrt [6]{2} d (a+a \sin (c+d x))^{2/3}}\\ \end {align*}

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Mathematica [C] Result contains complex when optimal does not.
time = 13.48, size = 604, normalized size = 9.15 \begin {gather*} \frac {2 \left (\cos \left (\frac {1}{2} (c+d x)\right )+\sin \left (\frac {1}{2} (c+d x)\right )\right )^2 \left (-3+\frac {3 \sin \left (\frac {1}{2} (c+d x)\right )}{\cos \left (\frac {1}{2} (c+d x)\right )+\sin \left (\frac {1}{2} (c+d x)\right )}\right )}{d (a (1+\sin (c+d x)))^{2/3}}-\frac {2 \sqrt {2} \left (\cos \left (\frac {1}{2} (c+d x)\right )+\sin \left (\frac {1}{2} (c+d x)\right )\right ) \sqrt [6]{1+\sin (c+d x)} \left (-\frac {i \sqrt [3]{\cos \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )} \left (-\frac {3 i \left (e^{-i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}+e^{i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}\right )^{2/3} \, _2F_1\left (-\frac {1}{3},\frac {1}{3};\frac {2}{3};-e^{2 i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}\right )}{2^{2/3} \left (1+e^{2 i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}\right )^{2/3}}-\frac {3 i e^{i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )} \sqrt [3]{1+e^{2 i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}} \, _2F_1\left (\frac {1}{3},\frac {2}{3};\frac {5}{3};-e^{2 i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}\right )}{2\ 2^{2/3} \sqrt [3]{e^{-i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}+e^{i \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}}}\right )}{2 \sqrt [6]{1+\cos \left (2 \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )\right )}}+\frac {3 \cos ^2\left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right ) \, _2F_1\left (\frac {1}{2},\frac {5}{6};\frac {11}{6};\cos ^2\left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )\right ) \sin \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}{5 \sqrt [6]{1+\cos \left (2 \left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )\right )} \sqrt {\sin ^2\left (\frac {\pi }{4}+\frac {1}{2} (-c-d x)\right )}}\right )}{d (a (1+\sin (c+d x)))^{2/3}} \end {gather*}

Antiderivative was successfully verified.

[In]

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

[Out]

(2*(Cos[(c + d*x)/2] + Sin[(c + d*x)/2])^2*(-3 + (3*Sin[(c + d*x)/2])/(Cos[(c + d*x)/2] + Sin[(c + d*x)/2])))/
(d*(a*(1 + Sin[c + d*x]))^(2/3)) - (2*Sqrt[2]*(Cos[(c + d*x)/2] + Sin[(c + d*x)/2])*(1 + Sin[c + d*x])^(1/6)*(
((-1/2*I)*Cos[Pi/4 + (-c - d*x)/2]^(1/3)*(((-3*I)*(E^((-I)*(Pi/4 + (-c - d*x)/2)) + E^(I*(Pi/4 + (-c - d*x)/2)
))^(2/3)*Hypergeometric2F1[-1/3, 1/3, 2/3, -E^((2*I)*(Pi/4 + (-c - d*x)/2))])/(2^(2/3)*(1 + E^((2*I)*(Pi/4 + (
-c - d*x)/2)))^(2/3)) - (((3*I)/2)*E^(I*(Pi/4 + (-c - d*x)/2))*(1 + E^((2*I)*(Pi/4 + (-c - d*x)/2)))^(1/3)*Hyp
ergeometric2F1[1/3, 2/3, 5/3, -E^((2*I)*(Pi/4 + (-c - d*x)/2))])/(2^(2/3)*(E^((-I)*(Pi/4 + (-c - d*x)/2)) + E^
(I*(Pi/4 + (-c - d*x)/2)))^(1/3))))/(1 + Cos[2*(Pi/4 + (-c - d*x)/2)])^(1/6) + (3*Cos[Pi/4 + (-c - d*x)/2]^2*H
ypergeometric2F1[1/2, 5/6, 11/6, Cos[Pi/4 + (-c - d*x)/2]^2]*Sin[Pi/4 + (-c - d*x)/2])/(5*(1 + Cos[2*(Pi/4 + (
-c - d*x)/2)])^(1/6)*Sqrt[Sin[Pi/4 + (-c - d*x)/2]^2])))/(d*(a*(1 + Sin[c + d*x]))^(2/3))

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Maple [F]
time = 0.02, size = 0, normalized size = 0.00 \[\int \frac {1}{\left (a +a \sin \left (d x +c \right )\right )^{\frac {2}{3}}}\, dx\]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(a+a*sin(d*x+c))^(2/3),x)

[Out]

int(1/(a+a*sin(d*x+c))^(2/3),x)

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

[Out]

integrate((a*sin(d*x + c) + a)^(-2/3), x)

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Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+a*sin(d*x+c))^(2/3),x, algorithm="fricas")

[Out]

integral((a*sin(d*x + c) + a)^(-2/3), x)

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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{\left (a \sin {\left (c + d x \right )} + a\right )^{\frac {2}{3}}}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+a*sin(d*x+c))**(2/3),x)

[Out]

Integral((a*sin(c + d*x) + a)**(-2/3), x)

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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+a*sin(d*x+c))^(2/3),x, algorithm="giac")

[Out]

integrate((a*sin(d*x + c) + a)^(-2/3), x)

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Mupad [F]
time = 0.00, size = -1, normalized size = -0.02 \begin {gather*} \int \frac {1}{{\left (a+a\,\sin \left (c+d\,x\right )\right )}^{2/3}} \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(a + a*sin(c + d*x))^(2/3),x)

[Out]

int(1/(a + a*sin(c + d*x))^(2/3), x)

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