Optimal. Leaf size=208 \[ -\frac {\left (2 a b B-a^2 C+b^2 C\right ) x}{\left (a^2+b^2\right )^2}+\frac {\left (a^2 B-b^2 B+2 a b C\right ) \log (\cos (c+d x))}{\left (a^2+b^2\right )^2 d}+\frac {a^2 \left (a^2 b B+3 b^3 B-2 a^3 C-4 a b^2 C\right ) \log (a+b \tan (c+d x))}{b^3 \left (a^2+b^2\right )^2 d}-\frac {\left (a b B-2 a^2 C-b^2 C\right ) \tan (c+d x)}{b^2 \left (a^2+b^2\right ) d}+\frac {a (b B-a C) \tan ^2(c+d x)}{b \left (a^2+b^2\right ) d (a+b \tan (c+d x))} \]
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Rubi [A]
time = 0.36, antiderivative size = 208, normalized size of antiderivative = 1.00, number of steps
used = 7, number of rules used = 7, integrand size = 40, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.175, Rules used = {3713, 3686,
3728, 3707, 3698, 31, 3556} \begin {gather*} \frac {a (b B-a C) \tan ^2(c+d x)}{b d \left (a^2+b^2\right ) (a+b \tan (c+d x))}-\frac {\left (-2 a^2 C+a b B-b^2 C\right ) \tan (c+d x)}{b^2 d \left (a^2+b^2\right )}+\frac {\left (a^2 B+2 a b C-b^2 B\right ) \log (\cos (c+d x))}{d \left (a^2+b^2\right )^2}-\frac {x \left (a^2 (-C)+2 a b B+b^2 C\right )}{\left (a^2+b^2\right )^2}+\frac {a^2 \left (-2 a^3 C+a^2 b B-4 a b^2 C+3 b^3 B\right ) \log (a+b \tan (c+d x))}{b^3 d \left (a^2+b^2\right )^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 31
Rule 3556
Rule 3686
Rule 3698
Rule 3707
Rule 3713
Rule 3728
Rubi steps
\begin {align*} \int \frac {\tan ^2(c+d x) \left (B \tan (c+d x)+C \tan ^2(c+d x)\right )}{(a+b \tan (c+d x))^2} \, dx &=\int \frac {\tan ^3(c+d x) (B+C \tan (c+d x))}{(a+b \tan (c+d x))^2} \, dx\\ &=\frac {a (b B-a C) \tan ^2(c+d x)}{b \left (a^2+b^2\right ) d (a+b \tan (c+d x))}+\frac {\int \frac {\tan (c+d x) \left (-2 a (b B-a C)+b (b B-a C) \tan (c+d x)-\left (a b B-2 a^2 C-b^2 C\right ) \tan ^2(c+d x)\right )}{a+b \tan (c+d x)} \, dx}{b \left (a^2+b^2\right )}\\ &=-\frac {\left (a b B-2 a^2 C-b^2 C\right ) \tan (c+d x)}{b^2 \left (a^2+b^2\right ) d}+\frac {a (b B-a C) \tan ^2(c+d x)}{b \left (a^2+b^2\right ) d (a+b \tan (c+d x))}+\frac {\int \frac {a \left (a b B-2 a^2 C-b^2 C\right )-b^2 (a B+b C) \tan (c+d x)+\left (a^2+b^2\right ) (b B-2 a C) \tan ^2(c+d x)}{a+b \tan (c+d x)} \, dx}{b^2 \left (a^2+b^2\right )}\\ &=-\frac {\left (2 a b B-a^2 C+b^2 C\right ) x}{\left (a^2+b^2\right )^2}-\frac {\left (a b B-2 a^2 C-b^2 C\right ) \tan (c+d x)}{b^2 \left (a^2+b^2\right ) d}+\frac {a (b B-a C) \tan ^2(c+d x)}{b \left (a^2+b^2\right ) d (a+b \tan (c+d x))}-\frac {\left (a^2 B-b^2 B+2 a b C\right ) \int \tan (c+d x) \, dx}{\left (a^2+b^2\right )^2}+\frac {\left (a^2 \left (a^2 b B+3 b^3 B-2 a^3 C-4 a b^2 C\right )\right ) \int \frac {1+\tan ^2(c+d x)}{a+b \tan (c+d x)} \, dx}{b^2 \left (a^2+b^2\right )^2}\\ &=-\frac {\left (2 a b B-a^2 C+b^2 C\right ) x}{\left (a^2+b^2\right )^2}+\frac {\left (a^2 B-b^2 B+2 a b C\right ) \log (\cos (c+d x))}{\left (a^2+b^2\right )^2 d}-\frac {\left (a b B-2 a^2 C-b^2 C\right ) \tan (c+d x)}{b^2 \left (a^2+b^2\right ) d}+\frac {a (b B-a C) \tan ^2(c+d x)}{b \left (a^2+b^2\right ) d (a+b \tan (c+d x))}+\frac {\left (a^2 \left (a^2 b B+3 b^3 B-2 a^3 C-4 a b^2 C\right )\right ) \text {Subst}\left (\int \frac {1}{a+x} \, dx,x,b \tan (c+d x)\right )}{b^3 \left (a^2+b^2\right )^2 d}\\ &=-\frac {\left (2 a b B-a^2 C+b^2 C\right ) x}{\left (a^2+b^2\right )^2}+\frac {\left (a^2 B-b^2 B+2 a b C\right ) \log (\cos (c+d x))}{\left (a^2+b^2\right )^2 d}+\frac {a^2 \left (a^2 b B+3 b^3 B-2 a^3 C-4 a b^2 C\right ) \log (a+b \tan (c+d x))}{b^3 \left (a^2+b^2\right )^2 d}-\frac {\left (a b B-2 a^2 C-b^2 C\right ) \tan (c+d x)}{b^2 \left (a^2+b^2\right ) d}+\frac {a (b B-a C) \tan ^2(c+d x)}{b \left (a^2+b^2\right ) d (a+b \tan (c+d x))}\\ \end {align*}
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Mathematica [C] Result contains complex when optimal does not.
time = 2.82, size = 444, normalized size = 2.13 \begin {gather*} \frac {a \left (2 (a+i b)^2 \left (2 a b^2 (B+i C)+i a^2 b (B+4 i C)-2 i a^3 C+b^3 C\right ) (c+d x)+2 \left (a^2+b^2\right )^2 (-b B+2 a C) \log (\cos (c+d x))+a^2 \left (a^2 b B+3 b^3 B-2 a^3 C-4 a b^2 C\right ) \log \left ((a \cos (c+d x)+b \sin (c+d x))^2\right )\right )+b \left (2 \left (a^3 b^2 C (3-4 i c-4 i d x)-b^5 C (c+d x)+i a^4 b B (i+c+d x)-2 i a^5 C (i+c+d x)+a b^4 (C-2 B (c+d x))+a^2 b^3 (C (c+d x)+i B (i+3 c+3 d x))\right )+2 \left (a^2+b^2\right )^2 (-b B+2 a C) \log (\cos (c+d x))+a^2 \left (a^2 b B+3 b^3 B-2 a^3 C-4 a b^2 C\right ) \log \left ((a \cos (c+d x)+b \sin (c+d x))^2\right )\right ) \tan (c+d x)+2 b^2 \left (a^2+b^2\right )^2 C \tan ^2(c+d x)+2 i a^2 \left (-a^2 b B-3 b^3 B+2 a^3 C+4 a b^2 C\right ) \text {ArcTan}(\tan (c+d x)) (a+b \tan (c+d x))}{2 b^3 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.23, size = 172, normalized size = 0.83
method | result | size |
derivativedivides | \(\frac {\frac {C \tan \left (d x +c \right )}{b^{2}}+\frac {a^{2} \left (B \,a^{2} b +3 B \,b^{3}-2 C \,a^{3}-4 C a \,b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{b^{3} \left (a^{2}+b^{2}\right )^{2}}+\frac {a^{3} \left (B b -C a \right )}{b^{3} \left (a^{2}+b^{2}\right ) \left (a +b \tan \left (d x +c \right )\right )}+\frac {\frac {\left (-a^{2} B +b^{2} B -2 C a b \right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+\left (-2 B a b +C \,a^{2}-b^{2} C \right ) \arctan \left (\tan \left (d x +c \right )\right )}{\left (a^{2}+b^{2}\right )^{2}}}{d}\) | \(172\) |
default | \(\frac {\frac {C \tan \left (d x +c \right )}{b^{2}}+\frac {a^{2} \left (B \,a^{2} b +3 B \,b^{3}-2 C \,a^{3}-4 C a \,b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{b^{3} \left (a^{2}+b^{2}\right )^{2}}+\frac {a^{3} \left (B b -C a \right )}{b^{3} \left (a^{2}+b^{2}\right ) \left (a +b \tan \left (d x +c \right )\right )}+\frac {\frac {\left (-a^{2} B +b^{2} B -2 C a b \right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+\left (-2 B a b +C \,a^{2}-b^{2} C \right ) \arctan \left (\tan \left (d x +c \right )\right )}{\left (a^{2}+b^{2}\right )^{2}}}{d}\) | \(172\) |
norman | \(\frac {\frac {C \left (\tan ^{2}\left (d x +c \right )\right )}{b d}+\frac {\left (B \,a^{2} b -2 C \,a^{3}-C a \,b^{2}\right ) a}{d \,b^{3} \left (a^{2}+b^{2}\right )}-\frac {a \left (2 B a b -C \,a^{2}+b^{2} C \right ) x}{a^{4}+2 a^{2} b^{2}+b^{4}}-\frac {b \left (2 B a b -C \,a^{2}+b^{2} C \right ) x \tan \left (d x +c \right )}{a^{4}+2 a^{2} b^{2}+b^{4}}}{a +b \tan \left (d x +c \right )}+\frac {a^{2} \left (B \,a^{2} b +3 B \,b^{3}-2 C \,a^{3}-4 C a \,b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b^{3} d}-\frac {\left (a^{2} B -b^{2} B +2 C a b \right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2 d \left (a^{4}+2 a^{2} b^{2}+b^{4}\right )}\) | \(265\) |
risch | \(\frac {2 i B x}{b^{2}}-\frac {x C}{2 i b a -a^{2}+b^{2}}-\frac {2 i a^{4} B c}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) d \,b^{2}}-\frac {6 i a^{2} B x}{a^{4}+2 a^{2} b^{2}+b^{4}}-\frac {4 i C a c}{b^{3} d}-\frac {6 i a^{2} B c}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) d}-\frac {4 i C a x}{b^{3}}+\frac {8 i a^{3} C x}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b}+\frac {2 i B c}{d \,b^{2}}+\frac {4 i a^{5} C x}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b^{3}}-\frac {2 i a^{4} B x}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b^{2}}+\frac {8 i a^{3} C c}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b d}+\frac {2 i \left (-B \,a^{3} b \,{\mathrm e}^{2 i \left (d x +c \right )}+2 C \,a^{4} {\mathrm e}^{2 i \left (d x +c \right )}-C \,b^{4} {\mathrm e}^{2 i \left (d x +c \right )}-2 i C \,a^{3} b \,{\mathrm e}^{2 i \left (d x +c \right )}-2 i C a \,b^{3} {\mathrm e}^{2 i \left (d x +c \right )}-B \,a^{3} b +2 C \,a^{4}+2 C \,a^{2} b^{2}+b^{4} C \right )}{\left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right ) \left (i b +a \right ) \left (-i b +a \right )^{2} \left (-i b \,{\mathrm e}^{2 i \left (d x +c \right )}+a \,{\mathrm e}^{2 i \left (d x +c \right )}+i b +a \right ) b^{2} d}+\frac {4 i a^{5} C c}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b^{3} d}-\frac {i x B}{2 i b a -a^{2}+b^{2}}-\frac {B \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )}{d \,b^{2}}+\frac {2 \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right ) C a}{b^{3} d}+\frac {a^{4} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {i b +a}{i b -a}\right ) B}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) d \,b^{2}}+\frac {3 a^{2} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {i b +a}{i b -a}\right ) B}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) d}-\frac {2 a^{5} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {i b +a}{i b -a}\right ) C}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b^{3} d}-\frac {4 a^{3} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {i b +a}{i b -a}\right ) C}{\left (a^{4}+2 a^{2} b^{2}+b^{4}\right ) b d}\) | \(762\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.51, size = 220, normalized size = 1.06 \begin {gather*} \frac {\frac {2 \, {\left (C a^{2} - 2 \, B a b - C b^{2}\right )} {\left (d x + c\right )}}{a^{4} + 2 \, a^{2} b^{2} + b^{4}} - \frac {2 \, {\left (2 \, C a^{5} - B a^{4} b + 4 \, C a^{3} b^{2} - 3 \, B a^{2} b^{3}\right )} \log \left (b \tan \left (d x + c\right ) + a\right )}{a^{4} b^{3} + 2 \, a^{2} b^{5} + b^{7}} - \frac {{\left (B a^{2} + 2 \, C a b - B b^{2}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{4} + 2 \, a^{2} b^{2} + b^{4}} - \frac {2 \, {\left (C a^{4} - B a^{3} b\right )}}{a^{3} b^{3} + a b^{5} + {\left (a^{2} b^{4} + b^{6}\right )} \tan \left (d x + c\right )} + \frac {2 \, C \tan \left (d x + c\right )}{b^{2}}}{2 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 434 vs.
\(2 (209) = 418\).
time = 3.06, size = 434, normalized size = 2.09 \begin {gather*} -\frac {2 \, C a^{4} b^{2} - 2 \, B a^{3} b^{3} - 2 \, {\left (C a^{3} b^{3} - 2 \, B a^{2} b^{4} - C a b^{5}\right )} d x - 2 \, {\left (C a^{4} b^{2} + 2 \, C a^{2} b^{4} + C b^{6}\right )} \tan \left (d x + c\right )^{2} + {\left (2 \, C a^{6} - B a^{5} b + 4 \, C a^{4} b^{2} - 3 \, B a^{3} b^{3} + {\left (2 \, C a^{5} b - B a^{4} b^{2} + 4 \, C a^{3} b^{3} - 3 \, B a^{2} b^{4}\right )} \tan \left (d x + c\right )\right )} \log \left (\frac {b^{2} \tan \left (d x + c\right )^{2} + 2 \, a b \tan \left (d x + c\right ) + a^{2}}{\tan \left (d x + c\right )^{2} + 1}\right ) - {\left (2 \, C a^{6} - B a^{5} b + 4 \, C a^{4} b^{2} - 2 \, B a^{3} b^{3} + 2 \, C a^{2} b^{4} - B a b^{5} + {\left (2 \, C a^{5} b - B a^{4} b^{2} + 4 \, C a^{3} b^{3} - 2 \, B a^{2} b^{4} + 2 \, C a b^{5} - B b^{6}\right )} \tan \left (d x + c\right )\right )} \log \left (\frac {1}{\tan \left (d x + c\right )^{2} + 1}\right ) - 2 \, {\left (2 \, C a^{5} b - B a^{4} b^{2} + 2 \, C a^{3} b^{3} + C a b^{5} + {\left (C a^{2} b^{4} - 2 \, B a b^{5} - C b^{6}\right )} d x\right )} \tan \left (d x + c\right )}{2 \, {\left ({\left (a^{4} b^{4} + 2 \, a^{2} b^{6} + b^{8}\right )} d \tan \left (d x + c\right ) + {\left (a^{5} b^{3} + 2 \, a^{3} b^{5} + a b^{7}\right )} d\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] Result contains complex when optimal does not.
time = 1.20, size = 4541, normalized size = 21.83 \begin {gather*} \text {Too large to display} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.86, size = 290, normalized size = 1.39 \begin {gather*} \frac {\frac {2 \, {\left (C a^{2} - 2 \, B a b - C b^{2}\right )} {\left (d x + c\right )}}{a^{4} + 2 \, a^{2} b^{2} + b^{4}} - \frac {{\left (B a^{2} + 2 \, C a b - B b^{2}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{4} + 2 \, a^{2} b^{2} + b^{4}} - \frac {2 \, {\left (2 \, C a^{5} - B a^{4} b + 4 \, C a^{3} b^{2} - 3 \, B a^{2} b^{3}\right )} \log \left ({\left | b \tan \left (d x + c\right ) + a \right |}\right )}{a^{4} b^{3} + 2 \, a^{2} b^{5} + b^{7}} + \frac {2 \, C \tan \left (d x + c\right )}{b^{2}} + \frac {2 \, {\left (2 \, C a^{5} b \tan \left (d x + c\right ) - B a^{4} b^{2} \tan \left (d x + c\right ) + 4 \, C a^{3} b^{3} \tan \left (d x + c\right ) - 3 \, B a^{2} b^{4} \tan \left (d x + c\right ) + C a^{6} + 3 \, C a^{4} b^{2} - 2 \, B a^{3} b^{3}\right )}}{{\left (a^{4} b^{3} + 2 \, a^{2} b^{5} + b^{7}\right )} {\left (b \tan \left (d x + c\right ) + a\right )}}}{2 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 9.65, size = 210, normalized size = 1.01 \begin {gather*} \frac {C\,\mathrm {tan}\left (c+d\,x\right )}{b^2\,d}-\frac {\ln \left (a+b\,\mathrm {tan}\left (c+d\,x\right )\right )\,\left (2\,C\,a^5-B\,a^4\,b+4\,C\,a^3\,b^2-3\,B\,a^2\,b^3\right )}{d\,\left (a^4\,b^3+2\,a^2\,b^5+b^7\right )}-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )-\mathrm {i}\right )\,\left (B+C\,1{}\mathrm {i}\right )}{2\,d\,\left (a^2+a\,b\,2{}\mathrm {i}-b^2\right )}-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )\,\left (C+B\,1{}\mathrm {i}\right )}{2\,d\,\left (a^2\,1{}\mathrm {i}+2\,a\,b-b^2\,1{}\mathrm {i}\right )}-\frac {a^2\,\left (C\,a^2-B\,a\,b\right )}{b\,d\,\left (\mathrm {tan}\left (c+d\,x\right )\,b^3+a\,b^2\right )\,\left (a^2+b^2\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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