3.35 \(\int \frac {1}{(c \cos (a+b x))^{2/3}} \, dx\)

Optimal. Leaf size=56 \[ -\frac {3 \sin (a+b x) \sqrt [3]{c \cos (a+b x)} \, _2F_1\left (\frac {1}{6},\frac {1}{2};\frac {7}{6};\cos ^2(a+b x)\right )}{b c \sqrt {\sin ^2(a+b x)}} \]

[Out]

-3*(c*cos(b*x+a))^(1/3)*hypergeom([1/6, 1/2],[7/6],cos(b*x+a)^2)*sin(b*x+a)/b/c/(sin(b*x+a)^2)^(1/2)

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Rubi [A]  time = 0.01, antiderivative size = 56, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {2643} \[ -\frac {3 \sin (a+b x) \sqrt [3]{c \cos (a+b x)} \, _2F_1\left (\frac {1}{6},\frac {1}{2};\frac {7}{6};\cos ^2(a+b x)\right )}{b c \sqrt {\sin ^2(a+b x)}} \]

Antiderivative was successfully verified.

[In]

Int[(c*Cos[a + b*x])^(-2/3),x]

[Out]

(-3*(c*Cos[a + b*x])^(1/3)*Hypergeometric2F1[1/6, 1/2, 7/6, Cos[a + b*x]^2]*Sin[a + b*x])/(b*c*Sqrt[Sin[a + b*
x]^2])

Rule 2643

Int[((b_.)*sin[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[(Cos[c + d*x]*(b*Sin[c + d*x])^(n + 1)*Hypergeomet
ric2F1[1/2, (n + 1)/2, (n + 3)/2, Sin[c + d*x]^2])/(b*d*(n + 1)*Sqrt[Cos[c + d*x]^2]), x] /; FreeQ[{b, c, d, n
}, x] &&  !IntegerQ[2*n]

Rubi steps

\begin {align*} \int \frac {1}{(c \cos (a+b x))^{2/3}} \, dx &=-\frac {3 \sqrt [3]{c \cos (a+b x)} \, _2F_1\left (\frac {1}{6},\frac {1}{2};\frac {7}{6};\cos ^2(a+b x)\right ) \sin (a+b x)}{b c \sqrt {\sin ^2(a+b x)}}\\ \end {align*}

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Mathematica [A]  time = 0.04, size = 53, normalized size = 0.95 \[ -\frac {3 \sqrt {\sin ^2(a+b x)} \cot (a+b x) \, _2F_1\left (\frac {1}{6},\frac {1}{2};\frac {7}{6};\cos ^2(a+b x)\right )}{b (c \cos (a+b x))^{2/3}} \]

Antiderivative was successfully verified.

[In]

Integrate[(c*Cos[a + b*x])^(-2/3),x]

[Out]

(-3*Cot[a + b*x]*Hypergeometric2F1[1/6, 1/2, 7/6, Cos[a + b*x]^2]*Sqrt[Sin[a + b*x]^2])/(b*(c*Cos[a + b*x])^(2
/3))

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fricas [F]  time = 0.40, size = 0, normalized size = 0.00 \[ {\rm integral}\left (\frac {\left (c \cos \left (b x + a\right )\right )^{\frac {1}{3}}}{c \cos \left (b x + a\right )}, x\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

integral((c*cos(b*x + a))^(1/3)/(c*cos(b*x + a)), x)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\left (c \cos \left (b x + a\right )\right )^{\frac {2}{3}}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

integrate((c*cos(b*x + a))^(-2/3), x)

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maple [F]  time = 0.09, size = 0, normalized size = 0.00 \[ \int \frac {1}{\left (c \cos \left (b x +a \right )\right )^{\frac {2}{3}}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

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

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\left (c \cos \left (b x + a\right )\right )^{\frac {2}{3}}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

integrate((c*cos(b*x + a))^(-2/3), x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.02 \[ \int \frac {1}{{\left (c\,\cos \left (a+b\,x\right )\right )}^{2/3}} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(c*cos(a + b*x))^(2/3),x)

[Out]

int(1/(c*cos(a + b*x))^(2/3), x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\left (c \cos {\left (a + b x \right )}\right )^{\frac {2}{3}}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

Integral((c*cos(a + b*x))**(-2/3), x)

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