3.5 \(\int \frac {1}{(\cos (x)+\sin (x))^6} \, dx\)

Optimal. Leaf size=50 \[ -\frac {\cos (x)-\sin (x)}{15 (\sin (x)+\cos (x))^3}-\frac {\cos (x)-\sin (x)}{10 (\sin (x)+\cos (x))^5}+\frac {2 \sin (x)}{15 (\sin (x)+\cos (x))} \]

[Out]

1/10*(-cos(x)+sin(x))/(cos(x)+sin(x))^5+1/15*(-cos(x)+sin(x))/(cos(x)+sin(x))^3+2/15*sin(x)/(cos(x)+sin(x))

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Rubi [A]  time = 0.03, antiderivative size = 50, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.286, Rules used = {3076, 3075} \[ -\frac {\cos (x)-\sin (x)}{15 (\sin (x)+\cos (x))^3}-\frac {\cos (x)-\sin (x)}{10 (\sin (x)+\cos (x))^5}+\frac {2 \sin (x)}{15 (\sin (x)+\cos (x))} \]

Antiderivative was successfully verified.

[In]

Int[(Cos[x] + Sin[x])^(-6),x]

[Out]

-(Cos[x] - Sin[x])/(10*(Cos[x] + Sin[x])^5) - (Cos[x] - Sin[x])/(15*(Cos[x] + Sin[x])^3) + (2*Sin[x])/(15*(Cos
[x] + Sin[x]))

Rule 3075

Int[(cos[(c_.) + (d_.)*(x_)]*(a_.) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(-2), x_Symbol] :> Simp[Sin[c + d*x]/(a*d*
(a*Cos[c + d*x] + b*Sin[c + d*x])), x] /; FreeQ[{a, b, c, d}, x] && NeQ[a^2 + b^2, 0]

Rule 3076

Int[(cos[(c_.) + (d_.)*(x_)]*(a_.) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[((b*Cos[c + d*x] -
a*Sin[c + d*x])*(a*Cos[c + d*x] + b*Sin[c + d*x])^(n + 1))/(d*(n + 1)*(a^2 + b^2)), x] + Dist[(n + 2)/((n + 1
)*(a^2 + b^2)), Int[(a*Cos[c + d*x] + b*Sin[c + d*x])^(n + 2), x], x] /; FreeQ[{a, b, c, d}, x] && NeQ[a^2 + b
^2, 0] && LtQ[n, -1] && NeQ[n, -2]

Rubi steps

\begin {align*} \int \frac {1}{(\cos (x)+\sin (x))^6} \, dx &=-\frac {\cos (x)-\sin (x)}{10 (\cos (x)+\sin (x))^5}+\frac {2}{5} \int \frac {1}{(\cos (x)+\sin (x))^4} \, dx\\ &=-\frac {\cos (x)-\sin (x)}{10 (\cos (x)+\sin (x))^5}-\frac {\cos (x)-\sin (x)}{15 (\cos (x)+\sin (x))^3}+\frac {2}{15} \int \frac {1}{(\cos (x)+\sin (x))^2} \, dx\\ &=-\frac {\cos (x)-\sin (x)}{10 (\cos (x)+\sin (x))^5}-\frac {\cos (x)-\sin (x)}{15 (\cos (x)+\sin (x))^3}+\frac {2 \sin (x)}{15 (\cos (x)+\sin (x))}\\ \end {align*}

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Mathematica [A]  time = 0.04, size = 26, normalized size = 0.52 \[ -\frac {-10 \sin (x)+\sin (5 x)+5 \cos (3 x)}{30 (\sin (x)+\cos (x))^5} \]

Antiderivative was successfully verified.

[In]

Integrate[(Cos[x] + Sin[x])^(-6),x]

[Out]

-1/30*(5*Cos[3*x] - 10*Sin[x] + Sin[5*x])/(Cos[x] + Sin[x])^5

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fricas [A]  time = 0.41, size = 67, normalized size = 1.34 \[ -\frac {8 \, \cos \relax (x)^{5} - 20 \, \cos \relax (x)^{3} - {\left (8 \, \cos \relax (x)^{4} + 4 \, \cos \relax (x)^{2} - 7\right )} \sin \relax (x) + 5 \, \cos \relax (x)}{30 \, {\left (4 \, \cos \relax (x)^{5} + {\left (4 \, \cos \relax (x)^{4} - 8 \, \cos \relax (x)^{2} - 1\right )} \sin \relax (x) - 5 \, \cos \relax (x)\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(cos(x)+sin(x))^6,x, algorithm="fricas")

[Out]

-1/30*(8*cos(x)^5 - 20*cos(x)^3 - (8*cos(x)^4 + 4*cos(x)^2 - 7)*sin(x) + 5*cos(x))/(4*cos(x)^5 + (4*cos(x)^4 -
8*cos(x)^2 - 1)*sin(x) - 5*cos(x))

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giac [A]  time = 0.17, size = 32, normalized size = 0.64 \[ -\frac {15 \, \tan \relax (x)^{4} + 30 \, \tan \relax (x)^{3} + 40 \, \tan \relax (x)^{2} + 20 \, \tan \relax (x) + 7}{15 \, {\left (\tan \relax (x) + 1\right )}^{5}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(cos(x)+sin(x))^6,x, algorithm="giac")

[Out]

-1/15*(15*tan(x)^4 + 30*tan(x)^3 + 40*tan(x)^2 + 20*tan(x) + 7)/(tan(x) + 1)^5

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maple [A]  time = 0.13, size = 42, normalized size = 0.84 \[ \frac {2}{\left (\tan \relax (x )+1\right )^{4}}-\frac {4}{5 \left (\tan \relax (x )+1\right )^{5}}-\frac {8}{3 \left (\tan \relax (x )+1\right )^{3}}+\frac {2}{\left (\tan \relax (x )+1\right )^{2}}-\frac {1}{\tan \relax (x )+1} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(cos(x)+sin(x))^6,x)

[Out]

2/(tan(x)+1)^4-4/5/(tan(x)+1)^5-8/3/(tan(x)+1)^3+2/(tan(x)+1)^2-1/(tan(x)+1)

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maxima [A]  time = 0.49, size = 56, normalized size = 1.12 \[ -\frac {15 \, \tan \relax (x)^{4} + 30 \, \tan \relax (x)^{3} + 40 \, \tan \relax (x)^{2} + 20 \, \tan \relax (x) + 7}{15 \, {\left (\tan \relax (x)^{5} + 5 \, \tan \relax (x)^{4} + 10 \, \tan \relax (x)^{3} + 10 \, \tan \relax (x)^{2} + 5 \, \tan \relax (x) + 1\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(cos(x)+sin(x))^6,x, algorithm="maxima")

[Out]

-1/15*(15*tan(x)^4 + 30*tan(x)^3 + 40*tan(x)^2 + 20*tan(x) + 7)/(tan(x)^5 + 5*tan(x)^4 + 10*tan(x)^3 + 10*tan(
x)^2 + 5*tan(x) + 1)

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mupad [B]  time = 0.27, size = 88, normalized size = 1.76 \[ \frac {2\,\mathrm {tan}\left (\frac {x}{2}\right )\,\left (15\,{\mathrm {tan}\left (\frac {x}{2}\right )}^8-60\,{\mathrm {tan}\left (\frac {x}{2}\right )}^7+100\,{\mathrm {tan}\left (\frac {x}{2}\right )}^6+20\,{\mathrm {tan}\left (\frac {x}{2}\right )}^5-118\,{\mathrm {tan}\left (\frac {x}{2}\right )}^4-20\,{\mathrm {tan}\left (\frac {x}{2}\right )}^3+100\,{\mathrm {tan}\left (\frac {x}{2}\right )}^2+60\,\mathrm {tan}\left (\frac {x}{2}\right )+15\right )}{15\,{\left (-{\mathrm {tan}\left (\frac {x}{2}\right )}^2+2\,\mathrm {tan}\left (\frac {x}{2}\right )+1\right )}^5} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(cos(x) + sin(x))^6,x)

[Out]

(2*tan(x/2)*(60*tan(x/2) + 100*tan(x/2)^2 - 20*tan(x/2)^3 - 118*tan(x/2)^4 + 20*tan(x/2)^5 + 100*tan(x/2)^6 -
60*tan(x/2)^7 + 15*tan(x/2)^8 + 15))/(15*(2*tan(x/2) - tan(x/2)^2 + 1)^5)

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sympy [B]  time = 5.67, size = 838, normalized size = 16.76 \[ \text {result too large to display} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(cos(x)+sin(x))**6,x)

[Out]

-30*tan(x/2)**9/(15*tan(x/2)**10 - 150*tan(x/2)**9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 102
0*tan(x/2)**5 + 450*tan(x/2)**4 - 600*tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15) + 120*tan(x/2)**8/(15
*tan(x/2)**10 - 150*tan(x/2)**9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(x/2)**5 + 450
*tan(x/2)**4 - 600*tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15) - 200*tan(x/2)**7/(15*tan(x/2)**10 - 150
*tan(x/2)**9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(x/2)**5 + 450*tan(x/2)**4 - 600*
tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15) - 40*tan(x/2)**6/(15*tan(x/2)**10 - 150*tan(x/2)**9 + 525*t
an(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(x/2)**5 + 450*tan(x/2)**4 - 600*tan(x/2)**3 - 525*ta
n(x/2)**2 - 150*tan(x/2) - 15) + 236*tan(x/2)**5/(15*tan(x/2)**10 - 150*tan(x/2)**9 + 525*tan(x/2)**8 - 600*ta
n(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(x/2)**5 + 450*tan(x/2)**4 - 600*tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan
(x/2) - 15) + 40*tan(x/2)**4/(15*tan(x/2)**10 - 150*tan(x/2)**9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(
x/2)**6 + 1020*tan(x/2)**5 + 450*tan(x/2)**4 - 600*tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15) - 200*ta
n(x/2)**3/(15*tan(x/2)**10 - 150*tan(x/2)**9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(
x/2)**5 + 450*tan(x/2)**4 - 600*tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15) - 120*tan(x/2)**2/(15*tan(x
/2)**10 - 150*tan(x/2)**9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(x/2)**5 + 450*tan(x
/2)**4 - 600*tan(x/2)**3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15) - 30*tan(x/2)/(15*tan(x/2)**10 - 150*tan(x/2)*
*9 + 525*tan(x/2)**8 - 600*tan(x/2)**7 - 450*tan(x/2)**6 + 1020*tan(x/2)**5 + 450*tan(x/2)**4 - 600*tan(x/2)**
3 - 525*tan(x/2)**2 - 150*tan(x/2) - 15)

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