\(\int \frac {\tanh (d (a+b \log (c x^n)))}{x^3} \, dx\) [178]

Optimal result

Integrand size = 17, antiderivative size = 56 \[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=-\frac {1}{2 x^2}+\frac {\operatorname {Hypergeometric2F1}\left (1,-\frac {1}{b d n},1-\frac {1}{b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{x^2} \]

[Out]

-1/2/x^2+hypergeom([1, -1/b/d/n],[1-1/b/d/n],-exp(2*a*d)*(c*x^n)^(2*b*d))/x^2

Rubi [A] (verified)

Time = 0.04 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.235, Rules used = {5658, 5656, 470, 371} \[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\frac {\operatorname {Hypergeometric2F1}\left (1,-\frac {1}{b d n},1-\frac {1}{b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{x^2}-\frac {1}{2 x^2} \]

[In]

Int[Tanh[d*(a + b*Log[c*x^n])]/x^3,x]

[Out]

-1/2*1/x^2 + Hypergeometric2F1[1, -(1/(b*d*n)), 1 - 1/(b*d*n), -(E^(2*a*d)*(c*x^n)^(2*b*d))]/x^2

Rule 371

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[a^p*((c*x)^(m + 1)/(c*(m + 1)))*Hyperg
eometric2F1[-p, (m + 1)/n, (m + 1)/n + 1, (-b)*(x^n/a)], x] /; FreeQ[{a, b, c, m, n, p}, x] &&  !IGtQ[p, 0] &&
(ILtQ[p, 0] || GtQ[a, 0])

Rule 470

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] - Dist[(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]

Rule 5656

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]

Rule 5658

Int[((e_.)*(x_))^(m_.)*Tanh[((a_.) + Log[(c_.)*(x_)^(n_.)]*(b_.))*(d_.)]^(p_.), x_Symbol] :> Dist[(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])

Rubi steps \begin{align*} \text {integral}& = \frac {\left (c x^n\right )^{2/n} \text {Subst}\left (\int x^{-1-\frac {2}{n}} \tanh (d (a+b \log (x))) \, dx,x,c x^n\right )}{n x^2} \\ & = \frac {\left (c x^n\right )^{2/n} \text {Subst}\left (\int \frac {x^{-1-\frac {2}{n}} \left (-1+e^{2 a d} x^{2 b d}\right )}{1+e^{2 a d} x^{2 b d}} \, dx,x,c x^n\right )}{n x^2} \\ & = -\frac {1}{2 x^2}-\frac {\left (2 \left (c x^n\right )^{2/n}\right ) \text {Subst}\left (\int \frac {x^{-1-\frac {2}{n}}}{1+e^{2 a d} x^{2 b d}} \, dx,x,c x^n\right )}{n x^2} \\ & = -\frac {1}{2 x^2}+\frac {\operatorname {Hypergeometric2F1}\left (1,-\frac {1}{b d n},1-\frac {1}{b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right )}{x^2} \\ \end{align*}

Mathematica [B] (verified)

Leaf count is larger than twice the leaf count of optimal. \(120\) vs. \(2(56)=112\).

Time = 3.40 (sec) , antiderivative size = 120, normalized size of antiderivative = 2.14 \[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\frac {\frac {e^{2 d \left (a+b \log \left (c x^n\right )\right )} \operatorname {Hypergeometric2F1}\left (1,1-\frac {1}{b d n},2-\frac {1}{b d n},-e^{2 d \left (a+b \log \left (c x^n\right )\right )}\right )}{-1+b d n}+\operatorname {Hypergeometric2F1}\left (1,-\frac {1}{b d n},1-\frac {1}{b d n},-e^{2 d \left (a+b \log \left (c x^n\right )\right )}\right )}{2 x^2} \]

[In]

Integrate[Tanh[d*(a + b*Log[c*x^n])]/x^3,x]

[Out]

((E^(2*d*(a + b*Log[c*x^n]))*Hypergeometric2F1[1, 1 - 1/(b*d*n), 2 - 1/(b*d*n), -E^(2*d*(a + b*Log[c*x^n]))])/
(-1 + b*d*n) + Hypergeometric2F1[1, -(1/(b*d*n)), 1 - 1/(b*d*n), -E^(2*d*(a + b*Log[c*x^n]))])/(2*x^2)

Maple [F]

\[\int \frac {\tanh \left (d \left (a +b \ln \left (c \,x^{n}\right )\right )\right )}{x^{3}}d x\]

[In]

int(tanh(d*(a+b*ln(c*x^n)))/x^3,x)

[Out]

int(tanh(d*(a+b*ln(c*x^n)))/x^3,x)

Fricas [F]

\[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\int { \frac {\tanh \left ({\left (b \log \left (c x^{n}\right ) + a\right )} d\right )}{x^{3}} \,d x } \]

[In]

integrate(tanh(d*(a+b*log(c*x^n)))/x^3,x, algorithm="fricas")

[Out]

integral(tanh(b*d*log(c*x^n) + a*d)/x^3, x)

Sympy [F]

\[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\int \frac {\tanh {\left (a d + b d \log {\left (c x^{n} \right )} \right )}}{x^{3}}\, dx \]

[In]

integrate(tanh(d*(a+b*ln(c*x**n)))/x**3,x)

[Out]

Integral(tanh(a*d + b*d*log(c*x**n))/x**3, x)

Maxima [F]

\[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\int { \frac {\tanh \left ({\left (b \log \left (c x^{n}\right ) + a\right )} d\right )}{x^{3}} \,d x } \]

[In]

integrate(tanh(d*(a+b*log(c*x^n)))/x^3,x, algorithm="maxima")

[Out]

-1/2/x^2 - 2*integrate(1/(c^(2*b*d)*x^3*e^(2*b*d*log(x^n) + 2*a*d) + x^3), x)

Giac [F]

\[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\int { \frac {\tanh \left ({\left (b \log \left (c x^{n}\right ) + a\right )} d\right )}{x^{3}} \,d x } \]

[In]

integrate(tanh(d*(a+b*log(c*x^n)))/x^3,x, algorithm="giac")

[Out]

integrate(tanh((b*log(c*x^n) + a)*d)/x^3, x)

Mupad [F(-1)]

Timed out. \[ \int \frac {\tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )}{x^3} \, dx=\int \frac {\mathrm {tanh}\left (d\,\left (a+b\,\ln \left (c\,x^n\right )\right )\right )}{x^3} \,d x \]

[In]

int(tanh(d*(a + b*log(c*x^n)))/x^3,x)

[Out]

int(tanh(d*(a + b*log(c*x^n)))/x^3, x)