Optimal. Leaf size=291 \[ \frac{(B+i A) (a+b \tan (c+d x))^{n+1} \text{Hypergeometric2F1}\left (1,n+1,n+2,\frac{a+b \tan (c+d x)}{a-i b}\right )}{2 d (n+1) (b+i a)}+\frac{(A+i B) (a+b \tan (c+d x))^{n+1} \text{Hypergeometric2F1}\left (1,n+1,n+2,\frac{a+b \tan (c+d x)}{a+i b}\right )}{2 d (n+1) (a+i b)}+\frac{\left (2 a^2 B-a A b (n+3)-b^2 B \left (n^2+5 n+6\right )\right ) (a+b \tan (c+d x))^{n+1}}{b^3 d (n+1) (n+2) (n+3)}-\frac{\tan (c+d x) (2 a B-A b (n+3)) (a+b \tan (c+d x))^{n+1}}{b^2 d (n+2) (n+3)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{n+1}}{b d (n+3)} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.583964, antiderivative size = 289, normalized size of antiderivative = 0.99, number of steps used = 8, number of rules used = 6, integrand size = 31, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.194, Rules used = {3607, 3647, 3630, 3539, 3537, 68} \[ \frac{\left (2 a^2 B-a A b (n+3)-b^2 B (n+2) (n+3)\right ) (a+b \tan (c+d x))^{n+1}}{b^3 d (n+1) (n+2) (n+3)}-\frac{\tan (c+d x) (2 a B-A b (n+3)) (a+b \tan (c+d x))^{n+1}}{b^2 d (n+2) (n+3)}+\frac{(B+i A) (a+b \tan (c+d x))^{n+1} \, _2F_1\left (1,n+1;n+2;\frac{a+b \tan (c+d x)}{a-i b}\right )}{2 d (n+1) (b+i a)}+\frac{(A+i B) (a+b \tan (c+d x))^{n+1} \, _2F_1\left (1,n+1;n+2;\frac{a+b \tan (c+d x)}{a+i b}\right )}{2 d (n+1) (a+i b)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{n+1}}{b d (n+3)} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 3607
Rule 3647
Rule 3630
Rule 3539
Rule 3537
Rule 68
Rubi steps
\begin{align*} \int \tan ^3(c+d x) (a+b \tan (c+d x))^n (A+B \tan (c+d x)) \, dx &=\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{1+n}}{b d (3+n)}+\frac{\int \tan (c+d x) (a+b \tan (c+d x))^n \left (-2 a B-b B (3+n) \tan (c+d x)-(2 a B-A b (3+n)) \tan ^2(c+d x)\right ) \, dx}{b (3+n)}\\ &=-\frac{(2 a B-A b (3+n)) \tan (c+d x) (a+b \tan (c+d x))^{1+n}}{b^2 d (2+n) (3+n)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{1+n}}{b d (3+n)}+\frac{\int (a+b \tan (c+d x))^n \left (a (2 a B-A b (3+n))-A b^2 (2+n) (3+n) \tan (c+d x)+\left (2 a^2 B-a A b (3+n)-b^2 B (2+n) (3+n)\right ) \tan ^2(c+d x)\right ) \, dx}{b^2 (2+n) (3+n)}\\ &=\frac{\left (2 a^2 B-a A b (3+n)-b^2 B (2+n) (3+n)\right ) (a+b \tan (c+d x))^{1+n}}{b^3 d (1+n) (2+n) (3+n)}-\frac{(2 a B-A b (3+n)) \tan (c+d x) (a+b \tan (c+d x))^{1+n}}{b^2 d (2+n) (3+n)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{1+n}}{b d (3+n)}+\frac{\int (a+b \tan (c+d x))^n \left (b^2 B (2+n) (3+n)-A b^2 (2+n) (3+n) \tan (c+d x)\right ) \, dx}{b^2 (2+n) (3+n)}\\ &=\frac{\left (2 a^2 B-a A b (3+n)-b^2 B (2+n) (3+n)\right ) (a+b \tan (c+d x))^{1+n}}{b^3 d (1+n) (2+n) (3+n)}-\frac{(2 a B-A b (3+n)) \tan (c+d x) (a+b \tan (c+d x))^{1+n}}{b^2 d (2+n) (3+n)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{1+n}}{b d (3+n)}+\frac{1}{2} (-i A+B) \int (1-i \tan (c+d x)) (a+b \tan (c+d x))^n \, dx+\frac{1}{2} (i A+B) \int (1+i \tan (c+d x)) (a+b \tan (c+d x))^n \, dx\\ &=\frac{\left (2 a^2 B-a A b (3+n)-b^2 B (2+n) (3+n)\right ) (a+b \tan (c+d x))^{1+n}}{b^3 d (1+n) (2+n) (3+n)}-\frac{(2 a B-A b (3+n)) \tan (c+d x) (a+b \tan (c+d x))^{1+n}}{b^2 d (2+n) (3+n)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{1+n}}{b d (3+n)}-\frac{(A-i B) \operatorname{Subst}\left (\int \frac{(a-i b x)^n}{-1+x} \, dx,x,i \tan (c+d x)\right )}{2 d}-\frac{(A+i B) \operatorname{Subst}\left (\int \frac{(a+i b x)^n}{-1+x} \, dx,x,-i \tan (c+d x)\right )}{2 d}\\ &=\frac{\left (2 a^2 B-a A b (3+n)-b^2 B (2+n) (3+n)\right ) (a+b \tan (c+d x))^{1+n}}{b^3 d (1+n) (2+n) (3+n)}+\frac{(A-i B) \, _2F_1\left (1,1+n;2+n;\frac{a+b \tan (c+d x)}{a-i b}\right ) (a+b \tan (c+d x))^{1+n}}{2 (a-i b) d (1+n)}+\frac{(A+i B) \, _2F_1\left (1,1+n;2+n;\frac{a+b \tan (c+d x)}{a+i b}\right ) (a+b \tan (c+d x))^{1+n}}{2 (a+i b) d (1+n)}-\frac{(2 a B-A b (3+n)) \tan (c+d x) (a+b \tan (c+d x))^{1+n}}{b^2 d (2+n) (3+n)}+\frac{B \tan ^2(c+d x) (a+b \tan (c+d x))^{1+n}}{b d (3+n)}\\ \end{align*}
Mathematica [A] time = 2.24764, size = 281, normalized size = 0.97 \[ \frac{(a+b \tan (c+d x))^{n+1} \left (b^3 \left (n^2+5 n+6\right ) (a+i b) (A-i B) \text{Hypergeometric2F1}\left (1,n+1,n+2,\frac{a+b \tan (c+d x)}{a-i b}\right )+b^3 \left (n^2+5 n+6\right ) (a-i b) (A+i B) \text{Hypergeometric2F1}\left (1,n+1,n+2,\frac{a+b \tan (c+d x)}{a+i b}\right )+2 (a-i b) (a+i b) \left (2 a^2 B-a A b (n+3)-b^2 B (n+2) (n+3)\right )-2 b (n+1) (a-i b) (a+i b) \tan (c+d x) (2 a B-A b (n+3))+2 b^2 B (n+1) (n+2) (a-i b) (a+i b) \tan ^2(c+d x)\right )}{2 b^3 d (n+1) (n+2) (n+3) (a-i b) (a+i b)} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [F] time = 0.355, size = 0, normalized size = 0. \begin{align*} \int \left ( \tan \left ( dx+c \right ) \right ) ^{3} \left ( a+b\tan \left ( dx+c \right ) \right ) ^{n} \left ( A+B\tan \left ( dx+c \right ) \right ) \, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\left (B \tan \left (d x + c\right ) + A\right )}{\left (b \tan \left (d x + c\right ) + a\right )}^{n} \tan \left (d x + c\right )^{3}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left ({\left (B \tan \left (d x + c\right )^{4} + A \tan \left (d x + c\right )^{3}\right )}{\left (b \tan \left (d x + c\right ) + a\right )}^{n}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\left (B \tan \left (d x + c\right ) + A\right )}{\left (b \tan \left (d x + c\right ) + a\right )}^{n} \tan \left (d x + c\right )^{3}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]