3.505 \(\int \frac{(b \sec (a+b x))^n}{\sqrt{c \sin (a+b x)}} \, dx\)

Optimal. Leaf size=76 \[ -\frac{c \sin ^2(a+b x)^{3/4} (b \sec (a+b x))^{n-1} \, _2F_1\left (\frac{3}{4},\frac{1-n}{2};\frac{3-n}{2};\cos ^2(a+b x)\right )}{(1-n) (c \sin (a+b x))^{3/2}} \]

[Out]

-((c*Hypergeometric2F1[3/4, (1 - n)/2, (3 - n)/2, Cos[a + b*x]^2]*(b*Sec[a + b*x])^(-1 + n)*(Sin[a + b*x]^2)^(
3/4))/((1 - n)*(c*Sin[a + b*x])^(3/2)))

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Rubi [A]  time = 0.0962568, antiderivative size = 76, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 23, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.087, Rules used = {2587, 2576} \[ -\frac{c \sin ^2(a+b x)^{3/4} (b \sec (a+b x))^{n-1} \, _2F_1\left (\frac{3}{4},\frac{1-n}{2};\frac{3-n}{2};\cos ^2(a+b x)\right )}{(1-n) (c \sin (a+b x))^{3/2}} \]

Antiderivative was successfully verified.

[In]

Int[(b*Sec[a + b*x])^n/Sqrt[c*Sin[a + b*x]],x]

[Out]

-((c*Hypergeometric2F1[3/4, (1 - n)/2, (3 - n)/2, Cos[a + b*x]^2]*(b*Sec[a + b*x])^(-1 + n)*(Sin[a + b*x]^2)^(
3/4))/((1 - n)*(c*Sin[a + b*x])^(3/2)))

Rule 2587

Int[((b_.)*sec[(e_.) + (f_.)*(x_)])^(n_)*((a_.)*sin[(e_.) + (f_.)*(x_)])^(m_), x_Symbol] :> Dist[b^2*(b*Cos[e
+ f*x])^(n - 1)*(b*Sec[e + f*x])^(n - 1), Int[(a*Sin[e + f*x])^m/(b*Cos[e + f*x])^n, x], x] /; FreeQ[{a, b, e,
f, m, n}, x] &&  !IntegerQ[m] &&  !IntegerQ[n]

Rule 2576

Int[(cos[(e_.) + (f_.)*(x_)]*(a_.))^(m_)*((b_.)*sin[(e_.) + (f_.)*(x_)])^(n_), x_Symbol] :> -Simp[(b^(2*IntPar
t[(n - 1)/2] + 1)*(b*Sin[e + f*x])^(2*FracPart[(n - 1)/2])*(a*Cos[e + f*x])^(m + 1)*Hypergeometric2F1[(1 + m)/
2, (1 - n)/2, (3 + m)/2, Cos[e + f*x]^2])/(a*f*(m + 1)*(Sin[e + f*x]^2)^FracPart[(n - 1)/2]), x] /; FreeQ[{a,
b, e, f, m, n}, x] && SimplerQ[n, m]

Rubi steps

\begin{align*} \int \frac{(b \sec (a+b x))^n}{\sqrt{c \sin (a+b x)}} \, dx &=\left (b^2 (b \cos (a+b x))^{-1+n} (b \sec (a+b x))^{-1+n}\right ) \int \frac{(b \cos (a+b x))^{-n}}{\sqrt{c \sin (a+b x)}} \, dx\\ &=-\frac{c \, _2F_1\left (\frac{3}{4},\frac{1-n}{2};\frac{3-n}{2};\cos ^2(a+b x)\right ) (b \sec (a+b x))^{-1+n} \sin ^2(a+b x)^{3/4}}{(1-n) (c \sin (a+b x))^{3/2}}\\ \end{align*}

Mathematica [A]  time = 0.13394, size = 72, normalized size = 0.95 \[ \frac{\sin (2 (a+b x)) \cos ^2(a+b x)^{\frac{n-1}{2}} (b \sec (a+b x))^n \, _2F_1\left (\frac{1}{4},\frac{n+1}{2};\frac{5}{4};\sin ^2(a+b x)\right )}{b \sqrt{c \sin (a+b x)}} \]

Antiderivative was successfully verified.

[In]

Integrate[(b*Sec[a + b*x])^n/Sqrt[c*Sin[a + b*x]],x]

[Out]

((Cos[a + b*x]^2)^((-1 + n)/2)*Hypergeometric2F1[1/4, (1 + n)/2, 5/4, Sin[a + b*x]^2]*(b*Sec[a + b*x])^n*Sin[2
*(a + b*x)])/(b*Sqrt[c*Sin[a + b*x]])

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Maple [F]  time = 0.092, size = 0, normalized size = 0. \begin{align*} \int{ \left ( b\sec \left ( bx+a \right ) \right ) ^{n}{\frac{1}{\sqrt{c\sin \left ( bx+a \right ) }}}}\, dx \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b*sec(b*x+a))^n/(c*sin(b*x+a))^(1/2),x)

[Out]

int((b*sec(b*x+a))^n/(c*sin(b*x+a))^(1/2),x)

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b*sec(b*x+a))^n/(c*sin(b*x+a))^(1/2),x, algorithm="maxima")

[Out]

integrate((b*sec(b*x + a))^n/sqrt(c*sin(b*x + a)), x)

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b*sec(b*x+a))^n/(c*sin(b*x+a))^(1/2),x, algorithm="fricas")

[Out]

integral(sqrt(c*sin(b*x + a))*(b*sec(b*x + a))^n/(c*sin(b*x + a)), x)

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Sympy [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\left (b \sec{\left (a + b x \right )}\right )^{n}}{\sqrt{c \sin{\left (a + b x \right )}}}\, dx \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b*sec(b*x+a))**n/(c*sin(b*x+a))**(1/2),x)

[Out]

Integral((b*sec(a + b*x))**n/sqrt(c*sin(a + b*x)), x)

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b*sec(b*x+a))^n/(c*sin(b*x+a))^(1/2),x, algorithm="giac")

[Out]

integrate((b*sec(b*x + a))^n/sqrt(c*sin(b*x + a)), x)