\(\int x^3 \tanh (d (a+b \log (c x^n))) \, dx\) [182]

Optimal result

Integrand size = 17, antiderivative size = 59 \[ \int x^3 \tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right ) \, dx=\frac {x^4}{4}-\frac {1}{2} x^4 \operatorname {Hypergeometric2F1}\left (1,\frac {2}{b d n},1+\frac {2}{b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right ) \] Output:

1/4*x^4-1/2*x^4*hypergeom([1, 2/b/d/n],[1+2/b/d/n],-exp(2*a*d)*(c*x^n)^(2* 
b*d))
 

Mathematica [B] (verified)

Leaf count is larger than twice the leaf count of optimal. \(127\) vs. \(2(59)=118\).

Time = 5.20 (sec) , antiderivative size = 127, normalized size of antiderivative = 2.15 \[ \int x^3 \tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right ) \, dx=\frac {x^4 \left (2 e^{2 d \left (a+b \log \left (c x^n\right )\right )} \operatorname {Hypergeometric2F1}\left (1,1+\frac {2}{b d n},2+\frac {2}{b d n},-e^{2 d \left (a+b \log \left (c x^n\right )\right )}\right )-(2+b d n) \operatorname {Hypergeometric2F1}\left (1,\frac {2}{b d n},1+\frac {2}{b d n},-e^{2 d \left (a+b \log \left (c x^n\right )\right )}\right )\right )}{8+4 b d n} \] Input:

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

Output:

(x^4*(2*E^(2*d*(a + b*Log[c*x^n]))*Hypergeometric2F1[1, 1 + 2/(b*d*n), 2 + 
 2/(b*d*n), -E^(2*d*(a + b*Log[c*x^n]))] - (2 + b*d*n)*Hypergeometric2F1[1 
, 2/(b*d*n), 1 + 2/(b*d*n), -E^(2*d*(a + b*Log[c*x^n]))]))/(8 + 4*b*d*n)
 

Rubi [A] (verified)

Time = 0.40 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.61, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.235, Rules used = {6073, 6071, 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.

\(\displaystyle \int x^3 \tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right ) \, dx\)

\(\Big \downarrow \) 6073

\(\displaystyle \frac {x^4 \left (c x^n\right )^{-4/n} \int \left (c x^n\right )^{\frac {4}{n}-1} \tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right )d\left (c x^n\right )}{n}\)

\(\Big \downarrow \) 6071

\(\displaystyle \frac {x^4 \left (c x^n\right )^{-4/n} \int \frac {\left (c x^n\right )^{\frac {4}{n}-1} \left (e^{2 a d} \left (c x^n\right )^{2 b d}-1\right )}{e^{2 a d} \left (c x^n\right )^{2 b d}+1}d\left (c x^n\right )}{n}\)

\(\Big \downarrow \) 959

\(\displaystyle \frac {x^4 \left (c x^n\right )^{-4/n} \left (\frac {1}{4} n \left (c x^n\right )^{4/n}-2 \int \frac {\left (c x^n\right )^{\frac {4}{n}-1}}{e^{2 a d} \left (c x^n\right )^{2 b d}+1}d\left (c x^n\right )\right )}{n}\)

\(\Big \downarrow \) 888

\(\displaystyle \frac {x^4 \left (c x^n\right )^{-4/n} \left (\frac {1}{4} n \left (c x^n\right )^{4/n}-\frac {1}{2} n \left (c x^n\right )^{4/n} \operatorname {Hypergeometric2F1}\left (1,\frac {2}{b d n},1+\frac {2}{b d n},-e^{2 a d} \left (c x^n\right )^{2 b d}\right )\right )}{n}\)

Input:

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

Output:

(x^4*((n*(c*x^n)^(4/n))/4 - (n*(c*x^n)^(4/n)*Hypergeometric2F1[1, 2/(b*d*n 
), 1 + 2/(b*d*n), -(E^(2*a*d)*(c*x^n)^(2*b*d))])/2))/(n*(c*x^n)^(4/n))
 

Defintions of rubi rules used

rule 888

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])
 

rule 959

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]
 

rule 6071

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 6073

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])
 

Maple [F]

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

Input:

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

Output:

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

Fricas [F]

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

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

Output:

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

Sympy [F]

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

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

Output:

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

Maxima [F]

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

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

Output:

1/4*x^4 - 2*integrate(x^3/(c^(2*b*d)*e^(2*b*d*log(x^n) + 2*a*d) + 1), x)
 

Giac [F]

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

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

Output:

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

Mupad [F(-1)]

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

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

Output:

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

Reduce [F]

\[ \int x^3 \tanh \left (d \left (a+b \log \left (c x^n\right )\right )\right ) \, dx=2 e^{2 a d} c^{2 b d} \left (\int \frac {x^{2 b d n} x^{3}}{x^{2 b d n} e^{2 a d} c^{2 b d}+1}d x \right )-\frac {x^{4}}{4} \] Input:

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

Output:

(8*e**(2*a*d)*c**(2*b*d)*int((x**(2*b*d*n)*x**3)/(x**(2*b*d*n)*e**(2*a*d)* 
c**(2*b*d) + 1),x) - x**4)/4