Optimal. Leaf size=111 \[ \frac {x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3}{a}-\frac {3 x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)}{2 a}-\frac {\sin ^{-1}(a x)^4}{4 a^2}+\frac {3 \sin ^{-1}(a x)^2}{4 a^2}+\frac {1}{2} x^2 \sin ^{-1}(a x)^4-\frac {3}{2} x^2 \sin ^{-1}(a x)^2+\frac {3 x^2}{4} \]
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Rubi [A] time = 0.24, antiderivative size = 111, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 4, integrand size = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {4627, 4707, 4641, 30} \[ \frac {x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3}{a}-\frac {3 x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)}{2 a}-\frac {\sin ^{-1}(a x)^4}{4 a^2}+\frac {3 \sin ^{-1}(a x)^2}{4 a^2}+\frac {1}{2} x^2 \sin ^{-1}(a x)^4-\frac {3}{2} x^2 \sin ^{-1}(a x)^2+\frac {3 x^2}{4} \]
Antiderivative was successfully verified.
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Rule 30
Rule 4627
Rule 4641
Rule 4707
Rubi steps
\begin {align*} \int x \sin ^{-1}(a x)^4 \, dx &=\frac {1}{2} x^2 \sin ^{-1}(a x)^4-(2 a) \int \frac {x^2 \sin ^{-1}(a x)^3}{\sqrt {1-a^2 x^2}} \, dx\\ &=\frac {x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3}{a}+\frac {1}{2} x^2 \sin ^{-1}(a x)^4-3 \int x \sin ^{-1}(a x)^2 \, dx-\frac {\int \frac {\sin ^{-1}(a x)^3}{\sqrt {1-a^2 x^2}} \, dx}{a}\\ &=-\frac {3}{2} x^2 \sin ^{-1}(a x)^2+\frac {x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3}{a}-\frac {\sin ^{-1}(a x)^4}{4 a^2}+\frac {1}{2} x^2 \sin ^{-1}(a x)^4+(3 a) \int \frac {x^2 \sin ^{-1}(a x)}{\sqrt {1-a^2 x^2}} \, dx\\ &=-\frac {3 x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)}{2 a}-\frac {3}{2} x^2 \sin ^{-1}(a x)^2+\frac {x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3}{a}-\frac {\sin ^{-1}(a x)^4}{4 a^2}+\frac {1}{2} x^2 \sin ^{-1}(a x)^4+\frac {3 \int x \, dx}{2}+\frac {3 \int \frac {\sin ^{-1}(a x)}{\sqrt {1-a^2 x^2}} \, dx}{2 a}\\ &=\frac {3 x^2}{4}-\frac {3 x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)}{2 a}+\frac {3 \sin ^{-1}(a x)^2}{4 a^2}-\frac {3}{2} x^2 \sin ^{-1}(a x)^2+\frac {x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3}{a}-\frac {\sin ^{-1}(a x)^4}{4 a^2}+\frac {1}{2} x^2 \sin ^{-1}(a x)^4\\ \end {align*}
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Mathematica [A] time = 0.03, size = 96, normalized size = 0.86 \[ \frac {3 a^2 x^2+\left (2 a^2 x^2-1\right ) \sin ^{-1}(a x)^4+4 a x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)^3+\left (3-6 a^2 x^2\right ) \sin ^{-1}(a x)^2-6 a x \sqrt {1-a^2 x^2} \sin ^{-1}(a x)}{4 a^2} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.48, size = 82, normalized size = 0.74 \[ \frac {{\left (2 \, a^{2} x^{2} - 1\right )} \arcsin \left (a x\right )^{4} + 3 \, a^{2} x^{2} - 3 \, {\left (2 \, a^{2} x^{2} - 1\right )} \arcsin \left (a x\right )^{2} + 2 \, {\left (2 \, a x \arcsin \left (a x\right )^{3} - 3 \, a x \arcsin \left (a x\right )\right )} \sqrt {-a^{2} x^{2} + 1}}{4 \, a^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.15, size = 127, normalized size = 1.14 \[ \frac {\sqrt {-a^{2} x^{2} + 1} x \arcsin \left (a x\right )^{3}}{a} + \frac {{\left (a^{2} x^{2} - 1\right )} \arcsin \left (a x\right )^{4}}{2 \, a^{2}} + \frac {\arcsin \left (a x\right )^{4}}{4 \, a^{2}} - \frac {3 \, \sqrt {-a^{2} x^{2} + 1} x \arcsin \left (a x\right )}{2 \, a} - \frac {3 \, {\left (a^{2} x^{2} - 1\right )} \arcsin \left (a x\right )^{2}}{2 \, a^{2}} - \frac {3 \, \arcsin \left (a x\right )^{2}}{4 \, a^{2}} + \frac {3 \, {\left (a^{2} x^{2} - 1\right )}}{4 \, a^{2}} + \frac {3}{8 \, a^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.06, size = 117, normalized size = 1.05 \[ \frac {\frac {\left (a^{2} x^{2}-1\right ) \arcsin \left (a x \right )^{4}}{2}+\arcsin \left (a x \right )^{3} \left (a x \sqrt {-a^{2} x^{2}+1}+\arcsin \left (a x \right )\right )-\frac {3 \left (a^{2} x^{2}-1\right ) \arcsin \left (a x \right )^{2}}{2}-\frac {3 \arcsin \left (a x \right ) \left (a x \sqrt {-a^{2} x^{2}+1}+\arcsin \left (a x \right )\right )}{2}+\frac {3 \arcsin \left (a x \right )^{2}}{4}+\frac {3 a^{2} x^{2}}{4}-\frac {3 \arcsin \left (a x \right )^{4}}{4}}{a^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \frac {1}{2} \, x^{2} \arctan \left (a x, \sqrt {a x + 1} \sqrt {-a x + 1}\right )^{4} + 2 \, a \int \frac {\sqrt {a x + 1} \sqrt {-a x + 1} x^{2} \arctan \left (a x, \sqrt {a x + 1} \sqrt {-a x + 1}\right )^{3}}{a^{2} x^{2} - 1}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.01 \[ \int x\,{\mathrm {asin}\left (a\,x\right )}^4 \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 1.90, size = 104, normalized size = 0.94 \[ \begin {cases} \frac {x^{2} \operatorname {asin}^{4}{\left (a x \right )}}{2} - \frac {3 x^{2} \operatorname {asin}^{2}{\left (a x \right )}}{2} + \frac {3 x^{2}}{4} + \frac {x \sqrt {- a^{2} x^{2} + 1} \operatorname {asin}^{3}{\left (a x \right )}}{a} - \frac {3 x \sqrt {- a^{2} x^{2} + 1} \operatorname {asin}{\left (a x \right )}}{2 a} - \frac {\operatorname {asin}^{4}{\left (a x \right )}}{4 a^{2}} + \frac {3 \operatorname {asin}^{2}{\left (a x \right )}}{4 a^{2}} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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