Integrand size = 30, antiderivative size = 107 \[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=-\frac {\sqrt {1-a^2 x^2}}{d}-\frac {(a c-2 d) \arcsin (a x)}{d^2}+\frac {(a c-d)^2 \arctan \left (\frac {d+a^2 c x}{\sqrt {a^2 c^2-d^2} \sqrt {1-a^2 x^2}}\right )}{d^2 \sqrt {a^2 c^2-d^2}} \]
[Out]
Time = 0.16 (sec) , antiderivative size = 107, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {867, 1668, 858, 222, 739, 210} \[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=\frac {(a c-d)^2 \arctan \left (\frac {a^2 c x+d}{\sqrt {1-a^2 x^2} \sqrt {a^2 c^2-d^2}}\right )}{d^2 \sqrt {a^2 c^2-d^2}}-\frac {\sqrt {1-a^2 x^2}}{d}-\frac {\arcsin (a x) (a c-2 d)}{d^2} \]
[In]
[Out]
Rule 210
Rule 222
Rule 739
Rule 858
Rule 867
Rule 1668
Rubi steps \begin{align*} \text {integral}& = \int \frac {(1+a x)^2}{(c+d x) \sqrt {1-a^2 x^2}} \, dx \\ & = -\frac {\sqrt {1-a^2 x^2}}{d}-\frac {\int \frac {-a^2 d^2+a^3 (a c-2 d) d x}{(c+d x) \sqrt {1-a^2 x^2}} \, dx}{a^2 d^2} \\ & = -\frac {\sqrt {1-a^2 x^2}}{d}-\frac {(a (a c-2 d)) \int \frac {1}{\sqrt {1-a^2 x^2}} \, dx}{d^2}+\frac {(a c-d)^2 \int \frac {1}{(c+d x) \sqrt {1-a^2 x^2}} \, dx}{d^2} \\ & = -\frac {\sqrt {1-a^2 x^2}}{d}-\frac {(a c-2 d) \sin ^{-1}(a x)}{d^2}-\frac {(a c-d)^2 \text {Subst}\left (\int \frac {1}{-a^2 c^2+d^2-x^2} \, dx,x,\frac {d+a^2 c x}{\sqrt {1-a^2 x^2}}\right )}{d^2} \\ & = -\frac {\sqrt {1-a^2 x^2}}{d}-\frac {(a c-2 d) \sin ^{-1}(a x)}{d^2}+\frac {(a c-d)^2 \tan ^{-1}\left (\frac {d+a^2 c x}{\sqrt {a^2 c^2-d^2} \sqrt {1-a^2 x^2}}\right )}{d^2 \sqrt {a^2 c^2-d^2}} \\ \end{align*}
Time = 0.54 (sec) , antiderivative size = 130, normalized size of antiderivative = 1.21 \[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=\frac {-d \sqrt {1-a^2 x^2}+(-2 a c+4 d) \arctan \left (\frac {a x}{-1+\sqrt {1-a^2 x^2}}\right )-\frac {2 (a c-d) \sqrt {a^2 c^2-d^2} \arctan \left (\frac {\sqrt {a^2 c^2-d^2} x}{c+d x-c \sqrt {1-a^2 x^2}}\right )}{a c+d}}{d^2} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. \(232\) vs. \(2(99)=198\).
Time = 0.56 (sec) , antiderivative size = 233, normalized size of antiderivative = 2.18
method | result | size |
risch | \(\frac {a^{2} x^{2}-1}{d \sqrt {-a^{2} x^{2}+1}}-\frac {\frac {a \left (a c -2 d \right ) \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{d \sqrt {a^{2}}}-\frac {\left (-a^{2} c^{2}+2 a c d -d^{2}\right ) \ln \left (\frac {-\frac {2 \left (a^{2} c^{2}-d^{2}\right )}{d^{2}}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}+2 \sqrt {-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}\, \sqrt {-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}{x +\frac {c}{d}}\right )}{d^{2} \sqrt {-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}}{d}\) | \(233\) |
default | \(\frac {-\frac {\left (-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )\right )^{\frac {5}{2}}}{a \left (x -\frac {1}{a}\right )^{2}}-3 a \left (\frac {\left (-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )\right )^{\frac {3}{2}}}{3}-a \left (-\frac {\left (-2 a^{2} \left (x -\frac {1}{a}\right )-2 a \right ) \sqrt {-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )}}{4 a^{2}}+\frac {\arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )}}\right )}{2 \sqrt {a^{2}}}\right )\right )}{a \left (a c +d \right )}+\frac {d \left (\frac {\left (-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}\right )^{\frac {3}{2}}}{3}+\frac {a^{2} c \left (-\frac {\left (-2 a^{2} \left (x +\frac {c}{d}\right )+\frac {2 a^{2} c}{d}\right ) \sqrt {-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}{4 a^{2}}-\frac {\left (\frac {4 a^{2} \left (a^{2} c^{2}-d^{2}\right )}{d^{2}}-\frac {4 a^{4} c^{2}}{d^{2}}\right ) \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}\right )}{8 a^{2} \sqrt {a^{2}}}\right )}{d}-\frac {\left (a^{2} c^{2}-d^{2}\right ) \left (\sqrt {-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}+\frac {a^{2} c \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}\right )}{d \sqrt {a^{2}}}+\frac {\left (a^{2} c^{2}-d^{2}\right ) \ln \left (\frac {-\frac {2 \left (a^{2} c^{2}-d^{2}\right )}{d^{2}}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}+2 \sqrt {-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}\, \sqrt {-a^{2} \left (x +\frac {c}{d}\right )^{2}+\frac {2 a^{2} c \left (x +\frac {c}{d}\right )}{d}-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}{x +\frac {c}{d}}\right )}{d^{2} \sqrt {-\frac {a^{2} c^{2}-d^{2}}{d^{2}}}}\right )}{d^{2}}\right )}{\left (a c +d \right )^{2}}-\frac {d \left (\frac {\left (-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )\right )^{\frac {3}{2}}}{3}-a \left (-\frac {\left (-2 a^{2} \left (x -\frac {1}{a}\right )-2 a \right ) \sqrt {-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )}}{4 a^{2}}+\frac {\arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 a \left (x -\frac {1}{a}\right )}}\right )}{2 \sqrt {a^{2}}}\right )\right )}{\left (a c +d \right )^{2}}\) | \(866\) |
[In]
[Out]
none
Time = 0.39 (sec) , antiderivative size = 318, normalized size of antiderivative = 2.97 \[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=\left [-\frac {{\left (a c - d\right )} \sqrt {-\frac {a c - d}{a c + d}} \log \left (\frac {a^{2} c d x + d^{2} - {\left (a^{2} c^{2} - d^{2}\right )} \sqrt {-a^{2} x^{2} + 1} - {\left (a c d + d^{2} + {\left (a^{3} c^{2} + a^{2} c d\right )} x + \sqrt {-a^{2} x^{2} + 1} {\left (a c d + d^{2}\right )}\right )} \sqrt {-\frac {a c - d}{a c + d}}}{d x + c}\right ) - 2 \, {\left (a c - 2 \, d\right )} \arctan \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{a x}\right ) + \sqrt {-a^{2} x^{2} + 1} d}{d^{2}}, \frac {2 \, {\left (a c - d\right )} \sqrt {\frac {a c - d}{a c + d}} \arctan \left (\frac {{\left (d x - \sqrt {-a^{2} x^{2} + 1} c + c\right )} \sqrt {\frac {a c - d}{a c + d}}}{{\left (a c - d\right )} x}\right ) + 2 \, {\left (a c - 2 \, d\right )} \arctan \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{a x}\right ) - \sqrt {-a^{2} x^{2} + 1} d}{d^{2}}\right ] \]
[In]
[Out]
\[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=\int \frac {\left (- \left (a x - 1\right ) \left (a x + 1\right )\right )^{\frac {3}{2}}}{\left (c + d x\right ) \left (a x - 1\right )^{2}}\, dx \]
[In]
[Out]
\[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=\int { \frac {{\left (-a^{2} x^{2} + 1\right )}^{\frac {3}{2}}}{{\left (a x - 1\right )}^{2} {\left (d x + c\right )}} \,d x } \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 208 vs. \(2 (99) = 198\).
Time = 0.30 (sec) , antiderivative size = 208, normalized size of antiderivative = 1.94 \[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=-{\left (\frac {{\left (a x - 1\right )} \sqrt {-\frac {2}{a x - 1} - 1} \mathrm {sgn}\left (\frac {1}{a x - 1}\right ) \mathrm {sgn}\left (a\right )}{a d} - \frac {2 \, {\left (a c \mathrm {sgn}\left (\frac {1}{a x - 1}\right ) \mathrm {sgn}\left (a\right ) - 2 \, d \mathrm {sgn}\left (\frac {1}{a x - 1}\right ) \mathrm {sgn}\left (a\right )\right )} \arctan \left (\sqrt {-\frac {2}{a x - 1} - 1}\right )}{a d^{2}} + \frac {2 \, {\left (a^{2} c^{2} \mathrm {sgn}\left (\frac {1}{a x - 1}\right ) \mathrm {sgn}\left (a\right ) - 2 \, a c d \mathrm {sgn}\left (\frac {1}{a x - 1}\right ) \mathrm {sgn}\left (a\right ) + d^{2} \mathrm {sgn}\left (\frac {1}{a x - 1}\right ) \mathrm {sgn}\left (a\right )\right )} \arctan \left (\frac {a c \sqrt {-\frac {2}{a x - 1} - 1} + d \sqrt {-\frac {2}{a x - 1} - 1}}{\sqrt {a^{2} c^{2} - d^{2}}}\right )}{\sqrt {a^{2} c^{2} - d^{2}} a d^{2}}\right )} {\left | a \right |} \]
[In]
[Out]
Time = 0.30 (sec) , antiderivative size = 148, normalized size of antiderivative = 1.38 \[ \int \frac {\left (1-a^2 x^2\right )^{3/2}}{(1-a x)^2 (c+d x)} \, dx=-\frac {\sqrt {1-a^2\,x^2}}{d}-\frac {\mathrm {asinh}\left (x\,\sqrt {-a^2}\right )\,\left (2\,a\,\sqrt {-a^2}-\frac {a^2\,c\,\sqrt {-a^2}}{d}\right )}{a^2\,d}-\frac {\left (\ln \left (\sqrt {1-\frac {a^2\,c^2}{d^2}}\,\sqrt {1-a^2\,x^2}+\frac {a^2\,c\,x}{d}+1\right )-\ln \left (c+d\,x\right )\right )\,\left (a^2\,c^2-2\,a\,c\,d+d^2\right )}{d^3\,\sqrt {1-\frac {a^2\,c^2}{d^2}}} \]
[In]
[Out]