3.93 \(\int (d x)^m (a+b \tan ^{-1}(c x^2)) \, dx\)

Optimal. Leaf size=75 \[ \frac {(d x)^{m+1} \left (a+b \tan ^{-1}\left (c x^2\right )\right )}{d (m+1)}-\frac {2 b c (d x)^{m+3} \, _2F_1\left (1,\frac {m+3}{4};\frac {m+7}{4};-c^2 x^4\right )}{d^3 (m+1) (m+3)} \]

[Out]

(d*x)^(1+m)*(a+b*arctan(c*x^2))/d/(1+m)-2*b*c*(d*x)^(3+m)*hypergeom([1, 3/4+1/4*m],[7/4+1/4*m],-c^2*x^4)/d^3/(
1+m)/(3+m)

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Rubi [A]  time = 0.04, antiderivative size = 75, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.188, Rules used = {5033, 16, 364} \[ \frac {(d x)^{m+1} \left (a+b \tan ^{-1}\left (c x^2\right )\right )}{d (m+1)}-\frac {2 b c (d x)^{m+3} \, _2F_1\left (1,\frac {m+3}{4};\frac {m+7}{4};-c^2 x^4\right )}{d^3 (m+1) (m+3)} \]

Antiderivative was successfully verified.

[In]

Int[(d*x)^m*(a + b*ArcTan[c*x^2]),x]

[Out]

((d*x)^(1 + m)*(a + b*ArcTan[c*x^2]))/(d*(1 + m)) - (2*b*c*(d*x)^(3 + m)*Hypergeometric2F1[1, (3 + m)/4, (7 +
m)/4, -(c^2*x^4)])/(d^3*(1 + m)*(3 + m))

Rule 16

Int[(u_.)*(v_)^(m_.)*((b_)*(v_))^(n_), x_Symbol] :> Dist[1/b^m, Int[u*(b*v)^(m + n), x], x] /; FreeQ[{b, n}, x
] && IntegerQ[m]

Rule 364

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(a^p*(c*x)^(m + 1)*Hypergeometric2F1[-
p, (m + 1)/n, (m + 1)/n + 1, -((b*x^n)/a)])/(c*(m + 1)), x] /; FreeQ[{a, b, c, m, n, p}, x] &&  !IGtQ[p, 0] &&
(ILtQ[p, 0] || GtQ[a, 0])

Rule 5033

Int[((a_.) + ArcTan[(c_.)*(x_)^(n_)]*(b_.))*((d_.)*(x_))^(m_.), x_Symbol] :> Simp[((d*x)^(m + 1)*(a + b*ArcTan
[c*x^n]))/(d*(m + 1)), x] - Dist[(b*c*n)/(d*(m + 1)), Int[(x^(n - 1)*(d*x)^(m + 1))/(1 + c^2*x^(2*n)), x], x]
/; FreeQ[{a, b, c, d, m, n}, x] && NeQ[m, -1]

Rubi steps

\begin {align*} \int (d x)^m \left (a+b \tan ^{-1}\left (c x^2\right )\right ) \, dx &=\frac {(d x)^{1+m} \left (a+b \tan ^{-1}\left (c x^2\right )\right )}{d (1+m)}-\frac {(2 b c) \int \frac {x (d x)^{1+m}}{1+c^2 x^4} \, dx}{d (1+m)}\\ &=\frac {(d x)^{1+m} \left (a+b \tan ^{-1}\left (c x^2\right )\right )}{d (1+m)}-\frac {(2 b c) \int \frac {(d x)^{2+m}}{1+c^2 x^4} \, dx}{d^2 (1+m)}\\ &=\frac {(d x)^{1+m} \left (a+b \tan ^{-1}\left (c x^2\right )\right )}{d (1+m)}-\frac {2 b c (d x)^{3+m} \, _2F_1\left (1,\frac {3+m}{4};\frac {7+m}{4};-c^2 x^4\right )}{d^3 (1+m) (3+m)}\\ \end {align*}

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Mathematica [A]  time = 0.07, size = 65, normalized size = 0.87 \[ -\frac {x (d x)^m \left (2 b c x^2 \, _2F_1\left (1,\frac {m+3}{4};\frac {m+7}{4};-c^2 x^4\right )-(m+3) \left (a+b \tan ^{-1}\left (c x^2\right )\right )\right )}{(m+1) (m+3)} \]

Antiderivative was successfully verified.

[In]

Integrate[(d*x)^m*(a + b*ArcTan[c*x^2]),x]

[Out]

-((x*(d*x)^m*(-((3 + m)*(a + b*ArcTan[c*x^2])) + 2*b*c*x^2*Hypergeometric2F1[1, (3 + m)/4, (7 + m)/4, -(c^2*x^
4)]))/((1 + m)*(3 + m)))

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fricas [F]  time = 0.43, size = 0, normalized size = 0.00 \[ {\rm integral}\left ({\left (b \arctan \left (c x^{2}\right ) + a\right )} \left (d x\right )^{m}, x\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d*x)^m*(a+b*arctan(c*x^2)),x, algorithm="fricas")

[Out]

integral((b*arctan(c*x^2) + a)*(d*x)^m, x)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int {\left (b \arctan \left (c x^{2}\right ) + a\right )} \left (d x\right )^{m}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d*x)^m*(a+b*arctan(c*x^2)),x, algorithm="giac")

[Out]

integrate((b*arctan(c*x^2) + a)*(d*x)^m, x)

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maple [F]  time = 0.24, size = 0, normalized size = 0.00 \[ \int \left (d x \right )^{m} \left (a +b \arctan \left (c \,x^{2}\right )\right )\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((d*x)^m*(a+b*arctan(c*x^2)),x)

[Out]

int((d*x)^m*(a+b*arctan(c*x^2)),x)

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \frac {{\left (d^{m} x x^{m} \arctan \left (c x^{2}\right ) - 2 \, {\left (c d^{m} m + c d^{m}\right )} \int \frac {x^{2} x^{m}}{{\left (c^{2} m + c^{2}\right )} x^{4} + m + 1}\,{d x}\right )} b}{m + 1} + \frac {\left (d x\right )^{m + 1} a}{d {\left (m + 1\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d*x)^m*(a+b*arctan(c*x^2)),x, algorithm="maxima")

[Out]

(d^m*x*x^m*arctan(c*x^2) - 2*(c*d^m*m + c*d^m)*integrate(x^2*x^m/((c^2*m + c^2)*x^4 + m + 1), x))*b/(m + 1) +
(d*x)^(m + 1)*a/(d*(m + 1))

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mupad [F]  time = 0.00, size = -1, normalized size = -0.01 \[ \int {\left (d\,x\right )}^m\,\left (a+b\,\mathrm {atan}\left (c\,x^2\right )\right ) \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((d*x)^m*(a + b*atan(c*x^2)),x)

[Out]

int((d*x)^m*(a + b*atan(c*x^2)), x)

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sympy [F(-1)]  time = 0.00, size = 0, normalized size = 0.00 \[ \text {Timed out} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d*x)**m*(a+b*atan(c*x**2)),x)

[Out]

Timed out

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