Optimal. Leaf size=10 \[ \frac{1}{2} \sin \left (x^2+1\right ) \]
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Rubi [A] time = 0.0087427, antiderivative size = 10, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 8, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {3380, 2637} \[ \frac{1}{2} \sin \left (x^2+1\right ) \]
Antiderivative was successfully verified.
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Rule 3380
Rule 2637
Rubi steps
\begin{align*} \int x \cos \left (1+x^2\right ) \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \cos (1+x) \, dx,x,x^2\right )\\ &=\frac{1}{2} \sin \left (1+x^2\right )\\ \end{align*}
Mathematica [A] time = 0.0022885, size = 10, normalized size = 1. \[ \frac{1}{2} \sin \left (x^2+1\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.005, size = 9, normalized size = 0.9 \begin{align*}{\frac{\sin \left ({x}^{2}+1 \right ) }{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.952117, size = 11, normalized size = 1.1 \begin{align*} \frac{1}{2} \, \sin \left (x^{2} + 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.04218, size = 24, normalized size = 2.4 \begin{align*} \frac{1}{2} \, \sin \left (x^{2} + 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.170368, size = 7, normalized size = 0.7 \begin{align*} \frac{\sin{\left (x^{2} + 1 \right )}}{2} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.06857, size = 11, normalized size = 1.1 \begin{align*} \frac{1}{2} \, \sin \left (x^{2} + 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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