3.391 \(\int \frac {\tan ^{-1}(a x)^3}{c+a^2 c x^2} \, dx\)

Optimal. Leaf size=16 \[ \frac {\tan ^{-1}(a x)^4}{4 a c} \]

[Out]

1/4*arctan(a*x)^4/a/c

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Rubi [A]  time = 0.02, antiderivative size = 16, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.053, Rules used = {4884} \[ \frac {\tan ^{-1}(a x)^4}{4 a c} \]

Antiderivative was successfully verified.

[In]

Int[ArcTan[a*x]^3/(c + a^2*c*x^2),x]

[Out]

ArcTan[a*x]^4/(4*a*c)

Rule 4884

Int[((a_.) + ArcTan[(c_.)*(x_)]*(b_.))^(p_.)/((d_) + (e_.)*(x_)^2), x_Symbol] :> Simp[(a + b*ArcTan[c*x])^(p +
1)/(b*c*d*(p + 1)), x] /; FreeQ[{a, b, c, d, e, p}, x] && EqQ[e, c^2*d] && NeQ[p, -1]

Rubi steps

\begin {align*} \int \frac {\tan ^{-1}(a x)^3}{c+a^2 c x^2} \, dx &=\frac {\tan ^{-1}(a x)^4}{4 a c}\\ \end {align*}

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Mathematica [A]  time = 0.00, size = 16, normalized size = 1.00 \[ \frac {\tan ^{-1}(a x)^4}{4 a c} \]

Antiderivative was successfully verified.

[In]

Integrate[ArcTan[a*x]^3/(c + a^2*c*x^2),x]

[Out]

ArcTan[a*x]^4/(4*a*c)

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fricas [A]  time = 0.61, size = 14, normalized size = 0.88 \[ \frac {\arctan \left (a x\right )^{4}}{4 \, a c} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(arctan(a*x)^3/(a^2*c*x^2+c),x, algorithm="fricas")

[Out]

1/4*arctan(a*x)^4/(a*c)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \mathit {sage}_{0} x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(arctan(a*x)^3/(a^2*c*x^2+c),x, algorithm="giac")

[Out]

sage0*x

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maple [A]  time = 0.03, size = 15, normalized size = 0.94 \[ \frac {\arctan \left (a x \right )^{4}}{4 a c} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(arctan(a*x)^3/(a^2*c*x^2+c),x)

[Out]

1/4*arctan(a*x)^4/a/c

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maxima [A]  time = 0.61, size = 14, normalized size = 0.88 \[ \frac {\arctan \left (a x\right )^{4}}{4 \, a c} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(arctan(a*x)^3/(a^2*c*x^2+c),x, algorithm="maxima")

[Out]

1/4*arctan(a*x)^4/(a*c)

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mupad [B]  time = 0.13, size = 14, normalized size = 0.88 \[ \frac {{\mathrm {atan}\left (a\,x\right )}^4}{4\,a\,c} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(atan(a*x)^3/(c + a^2*c*x^2),x)

[Out]

atan(a*x)^4/(4*a*c)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \frac {\int \frac {\operatorname {atan}^{3}{\left (a x \right )}}{a^{2} x^{2} + 1}\, dx}{c} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(atan(a*x)**3/(a**2*c*x**2+c),x)

[Out]

Integral(atan(a*x)**3/(a**2*x**2 + 1), x)/c

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