3.49 \(\int \frac {1}{\sqrt {b \tan ^p(c+d x)}} \, dx\)

Optimal. Leaf size=62 \[ \frac {2 \tan (c+d x) \, _2F_1\left (1,\frac {2-p}{4};\frac {6-p}{4};-\tan ^2(c+d x)\right )}{d (2-p) \sqrt {b \tan ^p(c+d x)}} \]

[Out]

2*hypergeom([1, 1/2-1/4*p],[3/2-1/4*p],-tan(d*x+c)^2)*tan(d*x+c)/d/(2-p)/(b*tan(d*x+c)^p)^(1/2)

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Rubi [A]  time = 0.05, antiderivative size = 62, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {3659, 3476, 364} \[ \frac {2 \tan (c+d x) \, _2F_1\left (1,\frac {2-p}{4};\frac {6-p}{4};-\tan ^2(c+d x)\right )}{d (2-p) \sqrt {b \tan ^p(c+d x)}} \]

Antiderivative was successfully verified.

[In]

Int[1/Sqrt[b*Tan[c + d*x]^p],x]

[Out]

(2*Hypergeometric2F1[1, (2 - p)/4, (6 - p)/4, -Tan[c + d*x]^2]*Tan[c + d*x])/(d*(2 - p)*Sqrt[b*Tan[c + d*x]^p]
)

Rule 364

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(a^p*(c*x)^(m + 1)*Hypergeometric2F1[-
p, (m + 1)/n, (m + 1)/n + 1, -((b*x^n)/a)])/(c*(m + 1)), x] /; FreeQ[{a, b, c, m, n, p}, x] &&  !IGtQ[p, 0] &&
(ILtQ[p, 0] || GtQ[a, 0])

Rule 3476

Int[((b_.)*tan[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Dist[b/d, Subst[Int[x^n/(b^2 + x^2), x], x, b*Tan[c + d
*x]], x] /; FreeQ[{b, c, d, n}, x] &&  !IntegerQ[n]

Rule 3659

Int[(u_.)*((b_.)*((c_.)*tan[(e_.) + (f_.)*(x_)])^(n_))^(p_), x_Symbol] :> Dist[(b^IntPart[p]*(b*(c*Tan[e + f*x
])^n)^FracPart[p])/(c*Tan[e + f*x])^(n*FracPart[p]), Int[ActivateTrig[u]*(c*Tan[e + f*x])^(n*p), x], x] /; Fre
eQ[{b, c, e, f, n, p}, x] &&  !IntegerQ[p] &&  !IntegerQ[n] && (EqQ[u, 1] || MatchQ[u, ((d_.)*(trig_)[e + f*x]
)^(m_.) /; FreeQ[{d, m}, x] && MemberQ[{sin, cos, tan, cot, sec, csc}, trig]])

Rubi steps

\begin {align*} \int \frac {1}{\sqrt {b \tan ^p(c+d x)}} \, dx &=\frac {\tan ^{\frac {p}{2}}(c+d x) \int \tan ^{-\frac {p}{2}}(c+d x) \, dx}{\sqrt {b \tan ^p(c+d x)}}\\ &=\frac {\tan ^{\frac {p}{2}}(c+d x) \operatorname {Subst}\left (\int \frac {x^{-p/2}}{1+x^2} \, dx,x,\tan (c+d x)\right )}{d \sqrt {b \tan ^p(c+d x)}}\\ &=\frac {2 \, _2F_1\left (1,\frac {2-p}{4};\frac {6-p}{4};-\tan ^2(c+d x)\right ) \tan (c+d x)}{d (2-p) \sqrt {b \tan ^p(c+d x)}}\\ \end {align*}

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Mathematica [A]  time = 0.05, size = 60, normalized size = 0.97 \[ -\frac {2 \tan (c+d x) \, _2F_1\left (1,\frac {2-p}{4};\frac {6-p}{4};-\tan ^2(c+d x)\right )}{d (p-2) \sqrt {b \tan ^p(c+d x)}} \]

Antiderivative was successfully verified.

[In]

Integrate[1/Sqrt[b*Tan[c + d*x]^p],x]

[Out]

(-2*Hypergeometric2F1[1, (2 - p)/4, (6 - p)/4, -Tan[c + d*x]^2]*Tan[c + d*x])/(d*(-2 + p)*Sqrt[b*Tan[c + d*x]^
p])

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fricas [F(-2)]  time = 0.00, size = 0, normalized size = 0.00 \[ \text {Exception raised: TypeError} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(b*tan(d*x+c)^p)^(1/2),x, algorithm="fricas")

[Out]

Exception raised: TypeError >>  Error detected within library code:   integrate: implementation incomplete (ha
s polynomial part)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\sqrt {b \tan \left (d x + c\right )^{p}}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(b*tan(d*x+c)^p)^(1/2),x, algorithm="giac")

[Out]

integrate(1/sqrt(b*tan(d*x + c)^p), x)

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maple [F]  time = 0.60, size = 0, normalized size = 0.00 \[ \int \frac {1}{\sqrt {b \left (\tan ^{p}\left (d x +c \right )\right )}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(b*tan(d*x+c)^p)^(1/2),x)

[Out]

int(1/(b*tan(d*x+c)^p)^(1/2),x)

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\sqrt {b \tan \left (d x + c\right )^{p}}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(b*tan(d*x+c)^p)^(1/2),x, algorithm="maxima")

[Out]

integrate(1/sqrt(b*tan(d*x + c)^p), x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.02 \[ \int \frac {1}{\sqrt {b\,{\mathrm {tan}\left (c+d\,x\right )}^p}} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(b*tan(c + d*x)^p)^(1/2),x)

[Out]

int(1/(b*tan(c + d*x)^p)^(1/2), x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\sqrt {b \tan ^{p}{\left (c + d x \right )}}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(b*tan(d*x+c)**p)**(1/2),x)

[Out]

Integral(1/sqrt(b*tan(c + d*x)**p), x)

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