3.53 \(\int \frac{(a+b \cos (c+d x))^3}{\sqrt{e \sin (c+d x)}} \, dx\)

Optimal. Leaf size=157 \[ \frac{2 b \left (11 a^2+4 b^2\right ) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2 a \left (a^2+2 b^2\right ) \sqrt{\sin (c+d x)} F\left (\left .\frac{1}{2} \left (c+d x-\frac{\pi }{2}\right )\right |2\right )}{d \sqrt{e \sin (c+d x)}}+\frac{2 b \sqrt{e \sin (c+d x)} (a+b \cos (c+d x))^2}{5 d e}+\frac{6 a b \sqrt{e \sin (c+d x)} (a+b \cos (c+d x))}{5 d e} \]

[Out]

(2*a*(a^2 + 2*b^2)*EllipticF[(c - Pi/2 + d*x)/2, 2]*Sqrt[Sin[c + d*x]])/(d*Sqrt[e*Sin[c + d*x]]) + (2*b*(11*a^
2 + 4*b^2)*Sqrt[e*Sin[c + d*x]])/(5*d*e) + (6*a*b*(a + b*Cos[c + d*x])*Sqrt[e*Sin[c + d*x]])/(5*d*e) + (2*b*(a
+ b*Cos[c + d*x])^2*Sqrt[e*Sin[c + d*x]])/(5*d*e)

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Rubi [A]  time = 0.242702, antiderivative size = 157, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 25, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.2, Rules used = {2692, 2862, 2669, 2642, 2641} \[ \frac{2 b \left (11 a^2+4 b^2\right ) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2 a \left (a^2+2 b^2\right ) \sqrt{\sin (c+d x)} F\left (\left .\frac{1}{2} \left (c+d x-\frac{\pi }{2}\right )\right |2\right )}{d \sqrt{e \sin (c+d x)}}+\frac{2 b \sqrt{e \sin (c+d x)} (a+b \cos (c+d x))^2}{5 d e}+\frac{6 a b \sqrt{e \sin (c+d x)} (a+b \cos (c+d x))}{5 d e} \]

Antiderivative was successfully verified.

[In]

Int[(a + b*Cos[c + d*x])^3/Sqrt[e*Sin[c + d*x]],x]

[Out]

(2*a*(a^2 + 2*b^2)*EllipticF[(c - Pi/2 + d*x)/2, 2]*Sqrt[Sin[c + d*x]])/(d*Sqrt[e*Sin[c + d*x]]) + (2*b*(11*a^
2 + 4*b^2)*Sqrt[e*Sin[c + d*x]])/(5*d*e) + (6*a*b*(a + b*Cos[c + d*x])*Sqrt[e*Sin[c + d*x]])/(5*d*e) + (2*b*(a
+ b*Cos[c + d*x])^2*Sqrt[e*Sin[c + d*x]])/(5*d*e)

Rule 2692

Int[(cos[(e_.) + (f_.)*(x_)]*(g_.))^(p_)*((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_), x_Symbol] :> -Simp[(b*(g
*Cos[e + f*x])^(p + 1)*(a + b*Sin[e + f*x])^(m - 1))/(f*g*(m + p)), x] + Dist[1/(m + p), Int[(g*Cos[e + f*x])^
p*(a + b*Sin[e + f*x])^(m - 2)*(b^2*(m - 1) + a^2*(m + p) + a*b*(2*m + p - 1)*Sin[e + f*x]), x], x] /; FreeQ[{
a, b, e, f, g, p}, x] && NeQ[a^2 - b^2, 0] && GtQ[m, 1] && NeQ[m + p, 0] && (IntegersQ[2*m, 2*p] || IntegerQ[m
])

Rule 2862

Int[(cos[(e_.) + (f_.)*(x_)]*(g_.))^(p_)*((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((c_.) + (d_.)*sin[(e_.)
+ (f_.)*(x_)]), x_Symbol] :> -Simp[(d*(g*Cos[e + f*x])^(p + 1)*(a + b*Sin[e + f*x])^m)/(f*g*(m + p + 1)), x]
+ Dist[1/(m + p + 1), Int[(g*Cos[e + f*x])^p*(a + b*Sin[e + f*x])^(m - 1)*Simp[a*c*(m + p + 1) + b*d*m + (a*d*
m + b*c*(m + p + 1))*Sin[e + f*x], x], x], x] /; FreeQ[{a, b, c, d, e, f, g, p}, x] && NeQ[a^2 - b^2, 0] && Gt
Q[m, 0] &&  !LtQ[p, -1] && IntegerQ[2*m] &&  !(EqQ[m, 1] && NeQ[c^2 - d^2, 0] && SimplerQ[c + d*x, a + b*x])

Rule 2669

Int[(cos[(e_.) + (f_.)*(x_)]*(g_.))^(p_)*((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)]), x_Symbol] :> -Simp[(b*(g*Cos[
e + f*x])^(p + 1))/(f*g*(p + 1)), x] + Dist[a, Int[(g*Cos[e + f*x])^p, x], x] /; FreeQ[{a, b, e, f, g, p}, x]
&& (IntegerQ[2*p] || NeQ[a^2 - b^2, 0])

Rule 2642

Int[1/Sqrt[(b_)*sin[(c_.) + (d_.)*(x_)]], x_Symbol] :> Dist[Sqrt[Sin[c + d*x]]/Sqrt[b*Sin[c + d*x]], Int[1/Sqr
t[Sin[c + d*x]], x], x] /; FreeQ[{b, c, d}, x]

Rule 2641

Int[1/Sqrt[sin[(c_.) + (d_.)*(x_)]], x_Symbol] :> Simp[(2*EllipticF[(1*(c - Pi/2 + d*x))/2, 2])/d, x] /; FreeQ
[{c, d}, x]

Rubi steps

\begin{align*} \int \frac{(a+b \cos (c+d x))^3}{\sqrt{e \sin (c+d x)}} \, dx &=\frac{2 b (a+b \cos (c+d x))^2 \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2}{5} \int \frac{(a+b \cos (c+d x)) \left (\frac{5 a^2}{2}+2 b^2+\frac{9}{2} a b \cos (c+d x)\right )}{\sqrt{e \sin (c+d x)}} \, dx\\ &=\frac{6 a b (a+b \cos (c+d x)) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2 b (a+b \cos (c+d x))^2 \sqrt{e \sin (c+d x)}}{5 d e}+\frac{4}{15} \int \frac{\frac{15}{4} a \left (a^2+2 b^2\right )+\frac{3}{4} b \left (11 a^2+4 b^2\right ) \cos (c+d x)}{\sqrt{e \sin (c+d x)}} \, dx\\ &=\frac{2 b \left (11 a^2+4 b^2\right ) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{6 a b (a+b \cos (c+d x)) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2 b (a+b \cos (c+d x))^2 \sqrt{e \sin (c+d x)}}{5 d e}+\left (a \left (a^2+2 b^2\right )\right ) \int \frac{1}{\sqrt{e \sin (c+d x)}} \, dx\\ &=\frac{2 b \left (11 a^2+4 b^2\right ) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{6 a b (a+b \cos (c+d x)) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2 b (a+b \cos (c+d x))^2 \sqrt{e \sin (c+d x)}}{5 d e}+\frac{\left (a \left (a^2+2 b^2\right ) \sqrt{\sin (c+d x)}\right ) \int \frac{1}{\sqrt{\sin (c+d x)}} \, dx}{\sqrt{e \sin (c+d x)}}\\ &=\frac{2 a \left (a^2+2 b^2\right ) F\left (\left .\frac{1}{2} \left (c-\frac{\pi }{2}+d x\right )\right |2\right ) \sqrt{\sin (c+d x)}}{d \sqrt{e \sin (c+d x)}}+\frac{2 b \left (11 a^2+4 b^2\right ) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{6 a b (a+b \cos (c+d x)) \sqrt{e \sin (c+d x)}}{5 d e}+\frac{2 b (a+b \cos (c+d x))^2 \sqrt{e \sin (c+d x)}}{5 d e}\\ \end{align*}

Mathematica [A]  time = 0.71082, size = 98, normalized size = 0.62 \[ \frac{b \sin (c+d x) \left (30 a^2+10 a b \cos (c+d x)+b^2 \cos (2 (c+d x))+9 b^2\right )-10 a \left (a^2+2 b^2\right ) \sqrt{\sin (c+d x)} F\left (\left .\frac{1}{4} (-2 c-2 d x+\pi )\right |2\right )}{5 d \sqrt{e \sin (c+d x)}} \]

Antiderivative was successfully verified.

[In]

Integrate[(a + b*Cos[c + d*x])^3/Sqrt[e*Sin[c + d*x]],x]

[Out]

(-10*a*(a^2 + 2*b^2)*EllipticF[(-2*c + Pi - 2*d*x)/4, 2]*Sqrt[Sin[c + d*x]] + b*(30*a^2 + 9*b^2 + 10*a*b*Cos[c
+ d*x] + b^2*Cos[2*(c + d*x)])*Sin[c + d*x])/(5*d*Sqrt[e*Sin[c + d*x]])

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Maple [A]  time = 2.188, size = 210, normalized size = 1.3 \begin{align*} -{\frac{1}{5\,d\cos \left ( dx+c \right ) } \left ( 5\,{\it EllipticF} \left ( \sqrt{1-\sin \left ( dx+c \right ) },1/2\,\sqrt{2} \right ) \sqrt{1-\sin \left ( dx+c \right ) }\sqrt{2+2\,\sin \left ( dx+c \right ) }\sqrt{\sin \left ( dx+c \right ) }{a}^{3}+10\,{\it EllipticF} \left ( \sqrt{1-\sin \left ( dx+c \right ) },1/2\,\sqrt{2} \right ) \sqrt{1-\sin \left ( dx+c \right ) }\sqrt{2+2\,\sin \left ( dx+c \right ) }\sqrt{\sin \left ( dx+c \right ) }a{b}^{2}-2\,{b}^{3}\sin \left ( dx+c \right ) \left ( \cos \left ( dx+c \right ) \right ) ^{3}-10\,a{b}^{2}\sin \left ( dx+c \right ) \left ( \cos \left ( dx+c \right ) \right ) ^{2}-30\,{a}^{2}b\sin \left ( dx+c \right ) \cos \left ( dx+c \right ) -8\,{b}^{3}\sin \left ( dx+c \right ) \cos \left ( dx+c \right ) \right ){\frac{1}{\sqrt{e\sin \left ( dx+c \right ) }}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a+b*cos(d*x+c))^3/(e*sin(d*x+c))^(1/2),x)

[Out]

-1/5/cos(d*x+c)/(e*sin(d*x+c))^(1/2)*(5*EllipticF((1-sin(d*x+c))^(1/2),1/2*2^(1/2))*(1-sin(d*x+c))^(1/2)*(2+2*
sin(d*x+c))^(1/2)*sin(d*x+c)^(1/2)*a^3+10*EllipticF((1-sin(d*x+c))^(1/2),1/2*2^(1/2))*(1-sin(d*x+c))^(1/2)*(2+
2*sin(d*x+c))^(1/2)*sin(d*x+c)^(1/2)*a*b^2-2*b^3*sin(d*x+c)*cos(d*x+c)^3-10*a*b^2*sin(d*x+c)*cos(d*x+c)^2-30*a
^2*b*sin(d*x+c)*cos(d*x+c)-8*b^3*sin(d*x+c)*cos(d*x+c))/d

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Maxima [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (b \cos \left (d x + c\right ) + a\right )}^{3}}{\sqrt{e \sin \left (d x + c\right )}}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))^3/(e*sin(d*x+c))^(1/2),x, algorithm="maxima")

[Out]

integrate((b*cos(d*x + c) + a)^3/sqrt(e*sin(d*x + c)), x)

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Fricas [F]  time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{{\left (b^{3} \cos \left (d x + c\right )^{3} + 3 \, a b^{2} \cos \left (d x + c\right )^{2} + 3 \, a^{2} b \cos \left (d x + c\right ) + a^{3}\right )} \sqrt{e \sin \left (d x + c\right )}}{e \sin \left (d x + c\right )}, x\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))^3/(e*sin(d*x+c))^(1/2),x, algorithm="fricas")

[Out]

integral((b^3*cos(d*x + c)^3 + 3*a*b^2*cos(d*x + c)^2 + 3*a^2*b*cos(d*x + c) + a^3)*sqrt(e*sin(d*x + c))/(e*si
n(d*x + c)), x)

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Sympy [F(-1)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))**3/(e*sin(d*x+c))**(1/2),x)

[Out]

Timed out

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Giac [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (b \cos \left (d x + c\right ) + a\right )}^{3}}{\sqrt{e \sin \left (d x + c\right )}}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))^3/(e*sin(d*x+c))^(1/2),x, algorithm="giac")

[Out]

integrate((b*cos(d*x + c) + a)^3/sqrt(e*sin(d*x + c)), x)