Optimal. Leaf size=208 \[ \frac {a}{15 c \left (a^2 c-d\right ) \left (c+d x^2\right )^{3/2}}+\frac {a \left (7 a^2 c-4 d\right )}{15 c^2 \left (a^2 c-d\right )^2 \sqrt {c+d x^2}}+\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}-\frac {\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) \tanh ^{-1}\left (\frac {a \sqrt {c+d x^2}}{\sqrt {a^2 c-d}}\right )}{15 c^3 \left (a^2 c-d\right )^{5/2}} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.67, antiderivative size = 208, normalized size of antiderivative = 1.00, number of steps
used = 8, number of rules used = 9, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.562, Rules used = {198, 197, 5033,
6820, 12, 6847, 911, 1275, 214} \begin {gather*} \frac {a \left (7 a^2 c-4 d\right )}{15 c^2 \left (a^2 c-d\right )^2 \sqrt {c+d x^2}}+\frac {a}{15 c \left (a^2 c-d\right ) \left (c+d x^2\right )^{3/2}}-\frac {\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) \tanh ^{-1}\left (\frac {a \sqrt {c+d x^2}}{\sqrt {a^2 c-d}}\right )}{15 c^3 \left (a^2 c-d\right )^{5/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 12
Rule 197
Rule 198
Rule 214
Rule 911
Rule 1275
Rule 5033
Rule 6820
Rule 6847
Rubi steps
\begin {align*} \int \frac {\cot ^{-1}(a x)}{\left (c+d x^2\right )^{7/2}} \, dx &=\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+a \int \frac {\frac {x}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x}{15 c^3 \sqrt {c+d x^2}}}{1+a^2 x^2} \, dx\\ &=\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+a \int \frac {x \left (15 c^2+20 c d x^2+8 d^2 x^4\right )}{15 c^3 \left (1+a^2 x^2\right ) \left (c+d x^2\right )^{5/2}} \, dx\\ &=\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+\frac {a \int \frac {x \left (15 c^2+20 c d x^2+8 d^2 x^4\right )}{\left (1+a^2 x^2\right ) \left (c+d x^2\right )^{5/2}} \, dx}{15 c^3}\\ &=\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+\frac {a \text {Subst}\left (\int \frac {15 c^2+20 c d x+8 d^2 x^2}{\left (1+a^2 x\right ) (c+d x)^{5/2}} \, dx,x,x^2\right )}{30 c^3}\\ &=\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+\frac {a \text {Subst}\left (\int \frac {3 c^2+4 c x^2+8 x^4}{x^4 \left (\frac {-a^2 c+d}{d}+\frac {a^2 x^2}{d}\right )} \, dx,x,\sqrt {c+d x^2}\right )}{15 c^3 d}\\ &=\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+\frac {a \text {Subst}\left (\int \left (\frac {3 c^2 d}{\left (-a^2 c+d\right ) x^4}-\frac {c \left (7 a^2 c-4 d\right ) d}{\left (-a^2 c+d\right )^2 x^2}+\frac {d \left (15 a^4 c^2-20 a^2 c d+8 d^2\right )}{\left (-a^2 c+d\right )^2 \left (-a^2 c+d+a^2 x^2\right )}\right ) \, dx,x,\sqrt {c+d x^2}\right )}{15 c^3 d}\\ &=\frac {a}{15 c \left (a^2 c-d\right ) \left (c+d x^2\right )^{3/2}}+\frac {a \left (7 a^2 c-4 d\right )}{15 c^2 \left (a^2 c-d\right )^2 \sqrt {c+d x^2}}+\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}+\frac {\left (a \left (15 a^4 c^2-20 a^2 c d+8 d^2\right )\right ) \text {Subst}\left (\int \frac {1}{-a^2 c+d+a^2 x^2} \, dx,x,\sqrt {c+d x^2}\right )}{15 c^3 \left (a^2 c-d\right )^2}\\ &=\frac {a}{15 c \left (a^2 c-d\right ) \left (c+d x^2\right )^{3/2}}+\frac {a \left (7 a^2 c-4 d\right )}{15 c^2 \left (a^2 c-d\right )^2 \sqrt {c+d x^2}}+\frac {x \cot ^{-1}(a x)}{5 c \left (c+d x^2\right )^{5/2}}+\frac {4 x \cot ^{-1}(a x)}{15 c^2 \left (c+d x^2\right )^{3/2}}+\frac {8 x \cot ^{-1}(a x)}{15 c^3 \sqrt {c+d x^2}}-\frac {\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) \tanh ^{-1}\left (\frac {a \sqrt {c+d x^2}}{\sqrt {a^2 c-d}}\right )}{15 c^3 \left (a^2 c-d\right )^{5/2}}\\ \end {align*}
________________________________________________________________________________________
Mathematica [C] Result contains complex when optimal does not.
time = 0.76, size = 345, normalized size = 1.66 \begin {gather*} -\frac {-\frac {2 a c \left (-d \left (5 c+4 d x^2\right )+a^2 c \left (8 c+7 d x^2\right )\right )}{\left (-a^2 c+d\right )^2 \left (c+d x^2\right )^{3/2}}-\frac {2 x \left (15 c^2+20 c d x^2+8 d^2 x^4\right ) \cot ^{-1}(a x)}{\left (c+d x^2\right )^{5/2}}+\frac {\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) \log \left (\frac {60 a c^3 \left (a^2 c-d\right )^{3/2} \left (a c-i d x+\sqrt {a^2 c-d} \sqrt {c+d x^2}\right )}{\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) (i+a x)}\right )}{\left (a^2 c-d\right )^{5/2}}+\frac {\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) \log \left (\frac {60 a c^3 \left (a^2 c-d\right )^{3/2} \left (a c+i d x+\sqrt {a^2 c-d} \sqrt {c+d x^2}\right )}{\left (15 a^4 c^2-20 a^2 c d+8 d^2\right ) (-i+a x)}\right )}{\left (a^2 c-d\right )^{5/2}}}{30 c^3} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [F]
time = 0.18, size = 0, normalized size = 0.00 \[\int \frac {\mathrm {arccot}\left (a x \right )}{\left (d \,x^{2}+c \right )^{\frac {7}{2}}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: ValueError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 618 vs.
\(2 (180) = 360\).
time = 1.42, size = 1278, normalized size = 6.14 \begin {gather*} \left [\frac {{\left (15 \, a^{4} c^{5} - 20 \, a^{2} c^{4} d + {\left (15 \, a^{4} c^{2} d^{3} - 20 \, a^{2} c d^{4} + 8 \, d^{5}\right )} x^{6} + 8 \, c^{3} d^{2} + 3 \, {\left (15 \, a^{4} c^{3} d^{2} - 20 \, a^{2} c^{2} d^{3} + 8 \, c d^{4}\right )} x^{4} + 3 \, {\left (15 \, a^{4} c^{4} d - 20 \, a^{2} c^{3} d^{2} + 8 \, c^{2} d^{3}\right )} x^{2}\right )} \sqrt {a^{2} c - d} \log \left (\frac {a^{4} d^{2} x^{4} + 8 \, a^{4} c^{2} - 8 \, a^{2} c d + 2 \, {\left (4 \, a^{4} c d - 3 \, a^{2} d^{2}\right )} x^{2} - 4 \, {\left (a^{3} d x^{2} + 2 \, a^{3} c - a d\right )} \sqrt {a^{2} c - d} \sqrt {d x^{2} + c} + d^{2}}{a^{4} x^{4} + 2 \, a^{2} x^{2} + 1}\right ) + 4 \, {\left (8 \, a^{5} c^{5} - 13 \, a^{3} c^{4} d + 5 \, a c^{3} d^{2} + {\left (7 \, a^{5} c^{3} d^{2} - 11 \, a^{3} c^{2} d^{3} + 4 \, a c d^{4}\right )} x^{4} + 3 \, {\left (5 \, a^{5} c^{4} d - 8 \, a^{3} c^{3} d^{2} + 3 \, a c^{2} d^{3}\right )} x^{2} + {\left (8 \, {\left (a^{6} c^{3} d^{2} - 3 \, a^{4} c^{2} d^{3} + 3 \, a^{2} c d^{4} - d^{5}\right )} x^{5} + 20 \, {\left (a^{6} c^{4} d - 3 \, a^{4} c^{3} d^{2} + 3 \, a^{2} c^{2} d^{3} - c d^{4}\right )} x^{3} + 15 \, {\left (a^{6} c^{5} - 3 \, a^{4} c^{4} d + 3 \, a^{2} c^{3} d^{2} - c^{2} d^{3}\right )} x\right )} \operatorname {arccot}\left (a x\right )\right )} \sqrt {d x^{2} + c}}{60 \, {\left (a^{6} c^{9} - 3 \, a^{4} c^{8} d + 3 \, a^{2} c^{7} d^{2} - c^{6} d^{3} + {\left (a^{6} c^{6} d^{3} - 3 \, a^{4} c^{5} d^{4} + 3 \, a^{2} c^{4} d^{5} - c^{3} d^{6}\right )} x^{6} + 3 \, {\left (a^{6} c^{7} d^{2} - 3 \, a^{4} c^{6} d^{3} + 3 \, a^{2} c^{5} d^{4} - c^{4} d^{5}\right )} x^{4} + 3 \, {\left (a^{6} c^{8} d - 3 \, a^{4} c^{7} d^{2} + 3 \, a^{2} c^{6} d^{3} - c^{5} d^{4}\right )} x^{2}\right )}}, -\frac {{\left (15 \, a^{4} c^{5} - 20 \, a^{2} c^{4} d + {\left (15 \, a^{4} c^{2} d^{3} - 20 \, a^{2} c d^{4} + 8 \, d^{5}\right )} x^{6} + 8 \, c^{3} d^{2} + 3 \, {\left (15 \, a^{4} c^{3} d^{2} - 20 \, a^{2} c^{2} d^{3} + 8 \, c d^{4}\right )} x^{4} + 3 \, {\left (15 \, a^{4} c^{4} d - 20 \, a^{2} c^{3} d^{2} + 8 \, c^{2} d^{3}\right )} x^{2}\right )} \sqrt {-a^{2} c + d} \arctan \left (-\frac {{\left (a^{2} d x^{2} + 2 \, a^{2} c - d\right )} \sqrt {-a^{2} c + d} \sqrt {d x^{2} + c}}{2 \, {\left (a^{3} c^{2} - a c d + {\left (a^{3} c d - a d^{2}\right )} x^{2}\right )}}\right ) - 2 \, {\left (8 \, a^{5} c^{5} - 13 \, a^{3} c^{4} d + 5 \, a c^{3} d^{2} + {\left (7 \, a^{5} c^{3} d^{2} - 11 \, a^{3} c^{2} d^{3} + 4 \, a c d^{4}\right )} x^{4} + 3 \, {\left (5 \, a^{5} c^{4} d - 8 \, a^{3} c^{3} d^{2} + 3 \, a c^{2} d^{3}\right )} x^{2} + {\left (8 \, {\left (a^{6} c^{3} d^{2} - 3 \, a^{4} c^{2} d^{3} + 3 \, a^{2} c d^{4} - d^{5}\right )} x^{5} + 20 \, {\left (a^{6} c^{4} d - 3 \, a^{4} c^{3} d^{2} + 3 \, a^{2} c^{2} d^{3} - c d^{4}\right )} x^{3} + 15 \, {\left (a^{6} c^{5} - 3 \, a^{4} c^{4} d + 3 \, a^{2} c^{3} d^{2} - c^{2} d^{3}\right )} x\right )} \operatorname {arccot}\left (a x\right )\right )} \sqrt {d x^{2} + c}}{30 \, {\left (a^{6} c^{9} - 3 \, a^{4} c^{8} d + 3 \, a^{2} c^{7} d^{2} - c^{6} d^{3} + {\left (a^{6} c^{6} d^{3} - 3 \, a^{4} c^{5} d^{4} + 3 \, a^{2} c^{4} d^{5} - c^{3} d^{6}\right )} x^{6} + 3 \, {\left (a^{6} c^{7} d^{2} - 3 \, a^{4} c^{6} d^{3} + 3 \, a^{2} c^{5} d^{4} - c^{4} d^{5}\right )} x^{4} + 3 \, {\left (a^{6} c^{8} d - 3 \, a^{4} c^{7} d^{2} + 3 \, a^{2} c^{6} d^{3} - c^{5} d^{4}\right )} x^{2}\right )}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\operatorname {acot}{\left (a x \right )}}{\left (c + d x^{2}\right )^{\frac {7}{2}}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A]
time = 0.42, size = 208, normalized size = 1.00 \begin {gather*} \frac {1}{15} \, a {\left (\frac {{\left (15 \, a^{4} c^{2} - 20 \, a^{2} c d + 8 \, d^{2}\right )} \arctan \left (\frac {\sqrt {d x^{2} + c} a}{\sqrt {-a^{2} c + d}}\right )}{{\left (a^{4} c^{5} - 2 \, a^{2} c^{4} d + c^{3} d^{2}\right )} \sqrt {-a^{2} c + d} a} + \frac {7 \, {\left (d x^{2} + c\right )} a^{2} c + a^{2} c^{2} - 4 \, {\left (d x^{2} + c\right )} d - c d}{{\left (a^{4} c^{4} - 2 \, a^{2} c^{3} d + c^{2} d^{2}\right )} {\left (d x^{2} + c\right )}^{\frac {3}{2}}}\right )} + \frac {{\left (4 \, x^{2} {\left (\frac {2 \, d^{2} x^{2}}{c^{3}} + \frac {5 \, d}{c^{2}}\right )} + \frac {15}{c}\right )} x \arctan \left (\frac {1}{a x}\right )}{15 \, {\left (d x^{2} + c\right )}^{\frac {5}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Mupad [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int \frac {\mathrm {acot}\left (a\,x\right )}{{\left (d\,x^2+c\right )}^{7/2}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________