3.65 \(\int e^{2 x} \cos (e^{2 x}) \, dx\)

Optimal. Leaf size=10 \[ \frac{1}{2} \sin \left (e^{2 x}\right ) \]

[Out]

Sin[E^(2*x)]/2

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Rubi [A]  time = 0.0106718, antiderivative size = 10, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167, Rules used = {2282, 2637} \[ \frac{1}{2} \sin \left (e^{2 x}\right ) \]

Antiderivative was successfully verified.

[In]

Int[E^(2*x)*Cos[E^(2*x)],x]

[Out]

Sin[E^(2*x)]/2

Rule 2282

Int[u_, x_Symbol] :> With[{v = FunctionOfExponential[u, x]}, Dist[v/D[v, x], Subst[Int[FunctionOfExponentialFu
nction[u, x]/x, x], x, v], x]] /; FunctionOfExponentialQ[u, x] &&  !MatchQ[u, (w_)*((a_.)*(v_)^(n_))^(m_) /; F
reeQ[{a, m, n}, x] && IntegerQ[m*n]] &&  !MatchQ[u, E^((c_.)*((a_.) + (b_.)*x))*(F_)[v_] /; FreeQ[{a, b, c}, x
] && InverseFunctionQ[F[x]]]

Rule 2637

Int[sin[Pi/2 + (c_.) + (d_.)*(x_)], x_Symbol] :> Simp[Sin[c + d*x]/d, x] /; FreeQ[{c, d}, x]

Rubi steps

\begin{align*} \int e^{2 x} \cos \left (e^{2 x}\right ) \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \cos (x) \, dx,x,e^{2 x}\right )\\ &=\frac{1}{2} \sin \left (e^{2 x}\right )\\ \end{align*}

Mathematica [A]  time = 0.0102269, size = 10, normalized size = 1. \[ \frac{1}{2} \sin \left (e^{2 x}\right ) \]

Antiderivative was successfully verified.

[In]

Integrate[E^(2*x)*Cos[E^(2*x)],x]

[Out]

Sin[E^(2*x)]/2

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Maple [A]  time = 0.005, size = 8, normalized size = 0.8 \begin{align*}{\frac{\sin \left ({{\rm e}^{2\,x}} \right ) }{2}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(exp(2*x)*cos(exp(2*x)),x)

[Out]

1/2*sin(exp(2*x))

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Maxima [A]  time = 1.00125, size = 9, normalized size = 0.9 \begin{align*} \frac{1}{2} \, \sin \left (e^{\left (2 \, x\right )}\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp(2*x)*cos(exp(2*x)),x, algorithm="maxima")

[Out]

1/2*sin(e^(2*x))

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Fricas [A]  time = 0.457448, size = 24, normalized size = 2.4 \begin{align*} \frac{1}{2} \, \sin \left (e^{\left (2 \, x\right )}\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp(2*x)*cos(exp(2*x)),x, algorithm="fricas")

[Out]

1/2*sin(e^(2*x))

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Sympy [A]  time = 0.502239, size = 7, normalized size = 0.7 \begin{align*} \frac{\sin{\left (e^{2 x} \right )}}{2} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp(2*x)*cos(exp(2*x)),x)

[Out]

sin(exp(2*x))/2

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Giac [A]  time = 1.11665, size = 9, normalized size = 0.9 \begin{align*} \frac{1}{2} \, \sin \left (e^{\left (2 \, x\right )}\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp(2*x)*cos(exp(2*x)),x, algorithm="giac")

[Out]

1/2*sin(e^(2*x))