3.79 \(\int \frac {\cos ^4(c+d x)}{(a+a \sin (c+d x))^3} \, dx\)

Optimal. Leaf size=49 \[ -\frac {3 \cos (c+d x)}{a^3 d}-\frac {3 x}{a^3}-\frac {2 \cos ^3(c+d x)}{a d (a \sin (c+d x)+a)^2} \]

[Out]

-3*x/a^3-3*cos(d*x+c)/a^3/d-2*cos(d*x+c)^3/a/d/(a+a*sin(d*x+c))^2

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Rubi [A]  time = 0.09, antiderivative size = 49, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 21, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {2680, 2682, 8} \[ -\frac {3 \cos (c+d x)}{a^3 d}-\frac {3 x}{a^3}-\frac {2 \cos ^3(c+d x)}{a d (a \sin (c+d x)+a)^2} \]

Antiderivative was successfully verified.

[In]

Int[Cos[c + d*x]^4/(a + a*Sin[c + d*x])^3,x]

[Out]

(-3*x)/a^3 - (3*Cos[c + d*x])/(a^3*d) - (2*Cos[c + d*x]^3)/(a*d*(a + a*Sin[c + d*x])^2)

Rule 8

Int[a_, x_Symbol] :> Simp[a*x, x] /; FreeQ[a, x]

Rule 2680

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

Rule 2682

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

Rubi steps

\begin {align*} \int \frac {\cos ^4(c+d x)}{(a+a \sin (c+d x))^3} \, dx &=-\frac {2 \cos ^3(c+d x)}{a d (a+a \sin (c+d x))^2}-\frac {3 \int \frac {\cos ^2(c+d x)}{a+a \sin (c+d x)} \, dx}{a^2}\\ &=-\frac {3 \cos (c+d x)}{a^3 d}-\frac {2 \cos ^3(c+d x)}{a d (a+a \sin (c+d x))^2}-\frac {3 \int 1 \, dx}{a^3}\\ &=-\frac {3 x}{a^3}-\frac {3 \cos (c+d x)}{a^3 d}-\frac {2 \cos ^3(c+d x)}{a d (a+a \sin (c+d x))^2}\\ \end {align*}

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Mathematica [C]  time = 0.04, size = 59, normalized size = 1.20 \[ -\frac {\cos ^5(c+d x) \, _2F_1\left (\frac {3}{2},\frac {5}{2};\frac {7}{2};\frac {1}{2} (1-\sin (c+d x))\right )}{5 \sqrt {2} a^3 d (\sin (c+d x)+1)^{5/2}} \]

Antiderivative was successfully verified.

[In]

Integrate[Cos[c + d*x]^4/(a + a*Sin[c + d*x])^3,x]

[Out]

-1/5*(Cos[c + d*x]^5*Hypergeometric2F1[3/2, 5/2, 7/2, (1 - Sin[c + d*x])/2])/(Sqrt[2]*a^3*d*(1 + Sin[c + d*x])
^(5/2))

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fricas [A]  time = 0.54, size = 78, normalized size = 1.59 \[ -\frac {3 \, d x + {\left (3 \, d x + 5\right )} \cos \left (d x + c\right ) + \cos \left (d x + c\right )^{2} + {\left (3 \, d x + \cos \left (d x + c\right ) - 4\right )} \sin \left (d x + c\right ) + 4}{a^{3} d \cos \left (d x + c\right ) + a^{3} d \sin \left (d x + c\right ) + a^{3} d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(d*x+c)^4/(a+a*sin(d*x+c))^3,x, algorithm="fricas")

[Out]

-(3*d*x + (3*d*x + 5)*cos(d*x + c) + cos(d*x + c)^2 + (3*d*x + cos(d*x + c) - 4)*sin(d*x + c) + 4)/(a^3*d*cos(
d*x + c) + a^3*d*sin(d*x + c) + a^3*d)

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giac [A]  time = 2.08, size = 80, normalized size = 1.63 \[ -\frac {\frac {3 \, {\left (d x + c\right )}}{a^{3}} + \frac {2 \, {\left (4 \, \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + 5\right )}}{{\left (\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} + \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + 1\right )} a^{3}}}{d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(d*x+c)^4/(a+a*sin(d*x+c))^3,x, algorithm="giac")

[Out]

-(3*(d*x + c)/a^3 + 2*(4*tan(1/2*d*x + 1/2*c)^2 + tan(1/2*d*x + 1/2*c) + 5)/((tan(1/2*d*x + 1/2*c)^3 + tan(1/2
*d*x + 1/2*c)^2 + tan(1/2*d*x + 1/2*c) + 1)*a^3))/d

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maple [A]  time = 0.21, size = 64, normalized size = 1.31 \[ -\frac {2}{a^{3} d \left (1+\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}-\frac {6 \arctan \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{a^{3} d}-\frac {8}{a^{3} d \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right )} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(cos(d*x+c)^4/(a+a*sin(d*x+c))^3,x)

[Out]

-2/a^3/d/(1+tan(1/2*d*x+1/2*c)^2)-6/a^3/d*arctan(tan(1/2*d*x+1/2*c))-8/a^3/d/(tan(1/2*d*x+1/2*c)+1)

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maxima [B]  time = 0.59, size = 139, normalized size = 2.84 \[ -\frac {2 \, {\left (\frac {\frac {\sin \left (d x + c\right )}{\cos \left (d x + c\right ) + 1} + \frac {4 \, \sin \left (d x + c\right )^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} + 5}{a^{3} + \frac {a^{3} \sin \left (d x + c\right )}{\cos \left (d x + c\right ) + 1} + \frac {a^{3} \sin \left (d x + c\right )^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} + \frac {a^{3} \sin \left (d x + c\right )^{3}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{3}}} + \frac {3 \, \arctan \left (\frac {\sin \left (d x + c\right )}{\cos \left (d x + c\right ) + 1}\right )}{a^{3}}\right )}}{d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(d*x+c)^4/(a+a*sin(d*x+c))^3,x, algorithm="maxima")

[Out]

-2*((sin(d*x + c)/(cos(d*x + c) + 1) + 4*sin(d*x + c)^2/(cos(d*x + c) + 1)^2 + 5)/(a^3 + a^3*sin(d*x + c)/(cos
(d*x + c) + 1) + a^3*sin(d*x + c)^2/(cos(d*x + c) + 1)^2 + a^3*sin(d*x + c)^3/(cos(d*x + c) + 1)^3) + 3*arctan
(sin(d*x + c)/(cos(d*x + c) + 1))/a^3)/d

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mupad [B]  time = 4.85, size = 69, normalized size = 1.41 \[ -\frac {3\,x}{a^3}-\frac {8\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^2+2\,\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )+10}{a^3\,d\,\left (\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )+1\right )\,\left ({\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^2+1\right )} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(cos(c + d*x)^4/(a + a*sin(c + d*x))^3,x)

[Out]

- (3*x)/a^3 - (2*tan(c/2 + (d*x)/2) + 8*tan(c/2 + (d*x)/2)^2 + 10)/(a^3*d*(tan(c/2 + (d*x)/2) + 1)*(tan(c/2 +
(d*x)/2)^2 + 1))

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sympy [A]  time = 40.79, size = 478, normalized size = 9.76 \[ \begin {cases} - \frac {3 d x \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )}}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} - \frac {3 d x \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )}}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} - \frac {3 d x \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )}}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} - \frac {3 d x}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} - \frac {8 \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )}}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} - \frac {2 \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )}}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} - \frac {10}{a^{3} d \tan ^{3}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan ^{2}{\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d \tan {\left (\frac {c}{2} + \frac {d x}{2} \right )} + a^{3} d} & \text {for}\: d \neq 0 \\\frac {x \cos ^{4}{\relax (c )}}{\left (a \sin {\relax (c )} + a\right )^{3}} & \text {otherwise} \end {cases} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(d*x+c)**4/(a+a*sin(d*x+c))**3,x)

[Out]

Piecewise((-3*d*x*tan(c/2 + d*x/2)**3/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/2)**2 + a**3*d*tan(c/
2 + d*x/2) + a**3*d) - 3*d*x*tan(c/2 + d*x/2)**2/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/2)**2 + a*
*3*d*tan(c/2 + d*x/2) + a**3*d) - 3*d*x*tan(c/2 + d*x/2)/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/2)
**2 + a**3*d*tan(c/2 + d*x/2) + a**3*d) - 3*d*x/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/2)**2 + a**
3*d*tan(c/2 + d*x/2) + a**3*d) - 8*tan(c/2 + d*x/2)**2/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/2)**
2 + a**3*d*tan(c/2 + d*x/2) + a**3*d) - 2*tan(c/2 + d*x/2)/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/
2)**2 + a**3*d*tan(c/2 + d*x/2) + a**3*d) - 10/(a**3*d*tan(c/2 + d*x/2)**3 + a**3*d*tan(c/2 + d*x/2)**2 + a**3
*d*tan(c/2 + d*x/2) + a**3*d), Ne(d, 0)), (x*cos(c)**4/(a*sin(c) + a)**3, True))

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