Integrand size = 19, antiderivative size = 135 \[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=-\frac {1-\frac {1}{b d n}}{x}+\frac {1-e^{2 a d} \left (c x^n\right )^{2 b d}}{b d n x \left (1+e^{2 a d} \left (c x^n\right )^{2 b d}\right )}-\frac {2 \operatorname {Hypergeometric2F1}\left (1,-\frac {1}{2 b d n},1-\frac {1}{2 b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{b d n x} \]
(-1+1/b/d/n)/x+(1-exp(2*a*d)*(c*x^n)^(2*b*d))/b/d/n/x/(1+exp(2*a*d)*(c*x^n )^(2*b*d))-2*hypergeom([1, -1/2/b/d/n],[1-1/2/b/d/n],-exp(2*a*d)*(c*x^n)^( 2*b*d))/b/d/n/x
Time = 3.50 (sec) , antiderivative size = 162, normalized size of antiderivative = 1.20 \[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=-\frac {e^{2 d \left (a+b \log \left (c x^n\right )\right )} \operatorname {Hypergeometric2F1}\left (1,1-\frac {1}{2 b d n},2-\frac {1}{2 b d n},-e^{2 d \left (a+b \log \left (c x^n\right )\right )}\right )+(-1+2 b d n) \left (b d n+\operatorname {Hypergeometric2F1}\left (1,-\frac {1}{2 b d n},1-\frac {1}{2 b d n},-e^{2 d \left (a+b \log \left (c x^n\right )\right )}\right )+\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )\right )}{b d n (-1+2 b d n) x} \]
-((E^(2*d*(a + b*Log[c*x^n]))*Hypergeometric2F1[1, 1 - 1/(2*b*d*n), 2 - 1/ (2*b*d*n), -E^(2*d*(a + b*Log[c*x^n]))] + (-1 + 2*b*d*n)*(b*d*n + Hypergeo metric2F1[1, -1/2*1/(b*d*n), 1 - 1/(2*b*d*n), -E^(2*d*(a + b*Log[c*x^n]))] + Tanh[d*(a + b*Log[c*x^n])]))/(b*d*n*(-1 + 2*b*d*n)*x))
Time = 0.48 (sec) , antiderivative size = 182, normalized size of antiderivative = 1.35, number of steps used = 7, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.316, Rules used = {6073, 6071, 1004, 27, 959, 888}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx\) |
\(\Big \downarrow \) 6073 |
\(\displaystyle \frac {\left (c x^n\right )^{\frac {1}{n}} \int \left (c x^n\right )^{-1-\frac {1}{n}} \tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )d\left (c x^n\right )}{n x}\) |
\(\Big \downarrow \) 6071 |
\(\displaystyle \frac {\left (c x^n\right )^{\frac {1}{n}} \int \frac {\left (c x^n\right )^{-1-\frac {1}{n}} \left (e^{2 a d} \left (c x^n\right )^{2 b d}-1\right )^2}{\left (e^{2 a d} \left (c x^n\right )^{2 b d}+1\right )^2}d\left (c x^n\right )}{n x}\) |
\(\Big \downarrow \) 1004 |
\(\displaystyle \frac {\left (c x^n\right )^{\frac {1}{n}} \left (\frac {\left (c x^n\right )^{-1/n} \left (1-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{b d \left (e^{2 a d} \left (c x^n\right )^{2 b d}+1\right )}-\frac {e^{-2 a d} \int -\frac {2 \left (c x^n\right )^{-1-\frac {1}{n}} \left (\frac {e^{2 a d} (b d n+1)}{n}-\frac {e^{4 a d} (1-b d n) \left (c x^n\right )^{2 b d}}{n}\right )}{e^{2 a d} \left (c x^n\right )^{2 b d}+1}d\left (c x^n\right )}{2 b d}\right )}{n x}\) |
\(\Big \downarrow \) 27 |
\(\displaystyle \frac {\left (c x^n\right )^{\frac {1}{n}} \left (\frac {e^{-2 a d} \int \frac {\left (c x^n\right )^{-1-\frac {1}{n}} \left (\frac {e^{2 a d} (b d n+1)}{n}-\frac {e^{4 a d} (1-b d n) \left (c x^n\right )^{2 b d}}{n}\right )}{e^{2 a d} \left (c x^n\right )^{2 b d}+1}d\left (c x^n\right )}{b d}+\frac {\left (c x^n\right )^{-1/n} \left (1-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{b d \left (e^{2 a d} \left (c x^n\right )^{2 b d}+1\right )}\right )}{n x}\) |
\(\Big \downarrow \) 959 |
\(\displaystyle \frac {\left (c x^n\right )^{\frac {1}{n}} \left (\frac {e^{-2 a d} \left (\frac {2 e^{2 a d} \int \frac {\left (c x^n\right )^{-1-\frac {1}{n}}}{e^{2 a d} \left (c x^n\right )^{2 b d}+1}d\left (c x^n\right )}{n}+e^{2 a d} (1-b d n) \left (c x^n\right )^{-1/n}\right )}{b d}+\frac {\left (c x^n\right )^{-1/n} \left (1-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{b d \left (e^{2 a d} \left (c x^n\right )^{2 b d}+1\right )}\right )}{n x}\) |
\(\Big \downarrow \) 888 |
\(\displaystyle \frac {\left (c x^n\right )^{\frac {1}{n}} \left (\frac {e^{-2 a d} \left (e^{2 a d} (1-b d n) \left (c x^n\right )^{-1/n}-2 e^{2 a d} \left (c x^n\right )^{-1/n} \operatorname {Hypergeometric2F1}\left (1,-\frac {1}{2 b d n},1-\frac {1}{2 b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right )\right )}{b d}+\frac {\left (c x^n\right )^{-1/n} \left (1-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{b d \left (e^{2 a d} \left (c x^n\right )^{2 b d}+1\right )}\right )}{n x}\) |
((c*x^n)^n^(-1)*((1 - E^(2*a*d)*(c*x^n)^(2*b*d))/(b*d*(c*x^n)^n^(-1)*(1 + E^(2*a*d)*(c*x^n)^(2*b*d))) + ((E^(2*a*d)*(1 - b*d*n))/(c*x^n)^n^(-1) - (2 *E^(2*a*d)*Hypergeometric2F1[1, -1/2*1/(b*d*n), 1 - 1/(2*b*d*n), -(E^(2*a* d)*(c*x^n)^(2*b*d))])/(c*x^n)^n^(-1))/(b*d*E^(2*a*d))))/(n*x)
3.2.84.3.1 Defintions of rubi rules used
Int[(a_)*(Fx_), x_Symbol] :> Simp[a Int[Fx, x], x] /; FreeQ[a, x] && !Ma tchQ[Fx, (b_)*(Gx_) /; FreeQ[b, x]]
Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[a^p *((c*x)^(m + 1)/(c*(m + 1)))*Hypergeometric2F1[-p, (m + 1)/n, (m + 1)/n + 1 , (-b)*(x^n/a)], x] /; FreeQ[{a, b, c, m, n, p}, x] && !IGtQ[p, 0] && (ILt Q[p, 0] || GtQ[a, 0])
Int[((e_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n _)), x_Symbol] :> Simp[d*(e*x)^(m + 1)*((a + b*x^n)^(p + 1)/(b*e*(m + n*(p + 1) + 1))), x] - Simp[(a*d*(m + 1) - b*c*(m + n*(p + 1) + 1))/(b*(m + n*(p + 1) + 1)) Int[(e*x)^m*(a + b*x^n)^p, x], x] /; FreeQ[{a, b, c, d, e, m, n, p}, x] && NeQ[b*c - a*d, 0] && NeQ[m + n*(p + 1) + 1, 0]
Int[((e_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_)*((c_) + (d_.)*(x_)^(n_ ))^(q_), x_Symbol] :> Simp[(-(c*b - a*d))*(e*x)^(m + 1)*(a + b*x^n)^(p + 1) *((c + d*x^n)^(q - 1)/(a*b*e*n*(p + 1))), x] + Simp[1/(a*b*n*(p + 1)) Int [(e*x)^m*(a + b*x^n)^(p + 1)*(c + d*x^n)^(q - 2)*Simp[c*(c*b*n*(p + 1) + (c *b - a*d)*(m + 1)) + d*(c*b*n*(p + 1) + (c*b - a*d)*(m + n*(q - 1) + 1))*x^ n, x], x], x] /; FreeQ[{a, b, c, d, e, m, n}, x] && NeQ[b*c - a*d, 0] && Lt Q[p, -1] && GtQ[q, 1] && IntBinomialQ[a, b, c, d, e, m, n, p, q, x]
Int[((e_.)*(x_))^(m_.)*Tanh[((a_.) + Log[x_]*(b_.))*(d_.)]^(p_.), x_Symbol] :> Int[(e*x)^m*((-1 + E^(2*a*d)*x^(2*b*d))^p/(1 + E^(2*a*d)*x^(2*b*d))^p), x] /; FreeQ[{a, b, d, e, m, p}, x]
Int[((e_.)*(x_))^(m_.)*Tanh[((a_.) + Log[(c_.)*(x_)^(n_.)]*(b_.))*(d_.)]^(p _.), x_Symbol] :> Simp[(e*x)^(m + 1)/(e*n*(c*x^n)^((m + 1)/n)) Subst[Int[ x^((m + 1)/n - 1)*Tanh[d*(a + b*Log[x])]^p, x], x, c*x^n], x] /; FreeQ[{a, b, c, d, e, m, n, p}, x] && (NeQ[c, 1] || NeQ[n, 1])
\[\int \frac {{\tanh \left (d \left (a +b \ln \left (c \,x^{n}\right )\right )\right )}^{2}}{x^{2}}d x\]
\[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=\int { \frac {\tanh \left ({\left (b \log \left (c x^{n}\right ) + a\right )} d\right )^{2}}{x^{2}} \,d x } \]
\[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=\int \frac {\tanh ^{2}{\left (a d + b d \log {\left (c x^{n} \right )} \right )}}{x^{2}}\, dx \]
\[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=\int { \frac {\tanh \left ({\left (b \log \left (c x^{n}\right ) + a\right )} d\right )^{2}}{x^{2}} \,d x } \]
-(b*c^(2*b*d)*d*n*e^(2*b*d*log(x^n) + 2*a*d) + b*d*n - 2)/(b*c^(2*b*d)*d*n *x*e^(2*b*d*log(x^n) + 2*a*d) + b*d*n*x) + 2*integrate(1/(b*c^(2*b*d)*d*n* x^2*e^(2*b*d*log(x^n) + 2*a*d) + b*d*n*x^2), x)
\[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=\int { \frac {\tanh \left ({\left (b \log \left (c x^{n}\right ) + a\right )} d\right )^{2}}{x^{2}} \,d x } \]
Timed out. \[ \int \frac {\tanh ^2\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^2} \, dx=\int \frac {{\mathrm {tanh}\left (d\,\left (a+b\,\ln \left (c\,x^n\right )\right )\right )}^2}{x^2} \,d x \]