Integrand size = 14, antiderivative size = 105 \[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\frac {\sqrt {2} \operatorname {AppellF1}\left (\frac {1}{2},\frac {1}{2},\frac {2}{3},\frac {3}{2},\frac {1}{2} (1-\cos (c+d x)),\frac {b (1-\cos (c+d x))}{a+b}\right ) \left (\frac {a+b \cos (c+d x)}{a+b}\right )^{2/3} \sin (c+d x)}{d \sqrt {1+\cos (c+d x)} (a+b \cos (c+d x))^{2/3}} \]
[Out]
Time = 0.07 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {2744, 144, 143} \[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\frac {\sqrt {2} \sin (c+d x) \left (\frac {a+b \cos (c+d x)}{a+b}\right )^{2/3} \operatorname {AppellF1}\left (\frac {1}{2},\frac {1}{2},\frac {2}{3},\frac {3}{2},\frac {1}{2} (1-\cos (c+d x)),\frac {b (1-\cos (c+d x))}{a+b}\right )}{d \sqrt {\cos (c+d x)+1} (a+b \cos (c+d x))^{2/3}} \]
[In]
[Out]
Rule 143
Rule 144
Rule 2744
Rubi steps \begin{align*} \text {integral}& = -\frac {\sin (c+d x) \text {Subst}\left (\int \frac {1}{\sqrt {1-x} \sqrt {1+x} (a+b x)^{2/3}} \, dx,x,\cos (c+d x)\right )}{d \sqrt {1-\cos (c+d x)} \sqrt {1+\cos (c+d x)}} \\ & = -\frac {\left (\left (-\frac {a+b \cos (c+d x)}{-a-b}\right )^{2/3} \sin (c+d x)\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1-x} \sqrt {1+x} \left (-\frac {a}{-a-b}-\frac {b x}{-a-b}\right )^{2/3}} \, dx,x,\cos (c+d x)\right )}{d \sqrt {1-\cos (c+d x)} \sqrt {1+\cos (c+d x)} (a+b \cos (c+d x))^{2/3}} \\ & = \frac {\sqrt {2} \operatorname {AppellF1}\left (\frac {1}{2},\frac {1}{2},\frac {2}{3},\frac {3}{2},\frac {1}{2} (1-\cos (c+d x)),\frac {b (1-\cos (c+d x))}{a+b}\right ) \left (\frac {a+b \cos (c+d x)}{a+b}\right )^{2/3} \sin (c+d x)}{d \sqrt {1+\cos (c+d x)} (a+b \cos (c+d x))^{2/3}} \\ \end{align*}
Time = 0.28 (sec) , antiderivative size = 116, normalized size of antiderivative = 1.10 \[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=-\frac {3 \operatorname {AppellF1}\left (\frac {1}{3},\frac {1}{2},\frac {1}{2},\frac {4}{3},\frac {a+b \cos (c+d x)}{a-b},\frac {a+b \cos (c+d x)}{a+b}\right ) \sqrt {-\frac {b (-1+\cos (c+d x))}{a+b}} \sqrt {\frac {b (1+\cos (c+d x))}{-a+b}} \sqrt [3]{a+b \cos (c+d x)} \csc (c+d x)}{b d} \]
[In]
[Out]
\[\int \frac {1}{\left (a +\cos \left (d x +c \right ) b \right )^{\frac {2}{3}}}d x\]
[In]
[Out]
\[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\int { \frac {1}{{\left (b \cos \left (d x + c\right ) + a\right )}^{\frac {2}{3}}} \,d x } \]
[In]
[Out]
\[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\int \frac {1}{\left (a + b \cos {\left (c + d x \right )}\right )^{\frac {2}{3}}}\, dx \]
[In]
[Out]
\[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\int { \frac {1}{{\left (b \cos \left (d x + c\right ) + a\right )}^{\frac {2}{3}}} \,d x } \]
[In]
[Out]
\[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\int { \frac {1}{{\left (b \cos \left (d x + c\right ) + a\right )}^{\frac {2}{3}}} \,d x } \]
[In]
[Out]
Timed out. \[ \int \frac {1}{(a+b \cos (c+d x))^{2/3}} \, dx=\int \frac {1}{{\left (a+b\,\cos \left (c+d\,x\right )\right )}^{2/3}} \,d x \]
[In]
[Out]