3.213 \(\int \frac {\sec (x)}{-\cot (x)+\csc (x)} \, dx\)

Optimal. Leaf size=13 \[ \log (1-\cos (x))-\log (\cos (x)) \]

[Out]

ln(1-cos(x))-ln(cos(x))

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Rubi [A]  time = 0.06, antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.417, Rules used = {4392, 2707, 36, 29, 31} \[ \log (1-\cos (x))-\log (\cos (x)) \]

Antiderivative was successfully verified.

[In]

Int[Sec[x]/(-Cot[x] + Csc[x]),x]

[Out]

Log[1 - Cos[x]] - Log[Cos[x]]

Rule 29

Int[(x_)^(-1), x_Symbol] :> Simp[Log[x], x]

Rule 31

Int[((a_) + (b_.)*(x_))^(-1), x_Symbol] :> Simp[Log[RemoveContent[a + b*x, x]]/b, x] /; FreeQ[{a, b}, x]

Rule 36

Int[1/(((a_.) + (b_.)*(x_))*((c_.) + (d_.)*(x_))), x_Symbol] :> Dist[b/(b*c - a*d), Int[1/(a + b*x), x], x] -
Dist[d/(b*c - a*d), Int[1/(c + d*x), x], x] /; FreeQ[{a, b, c, d}, x] && NeQ[b*c - a*d, 0]

Rule 2707

Int[((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*tan[(e_.) + (f_.)*(x_)]^(p_.), x_Symbol] :> Dist[1/f, Subst[I
nt[(x^p*(a + x)^(m - (p + 1)/2))/(a - x)^((p + 1)/2), x], x, b*Sin[e + f*x]], x] /; FreeQ[{a, b, e, f, m}, x]
&& EqQ[a^2 - b^2, 0] && IntegerQ[(p + 1)/2]

Rule 4392

Int[(cot[(c_.) + (d_.)*(x_)]^(n_.)*(a_.) + csc[(c_.) + (d_.)*(x_)]^(n_.)*(b_.))^(p_)*(u_.), x_Symbol] :> Int[A
ctivateTrig[u]*Csc[c + d*x]^(n*p)*(b + a*Cos[c + d*x]^n)^p, x] /; FreeQ[{a, b, c, d}, x] && IntegersQ[n, p]

Rubi steps

\begin {align*} \int \frac {\sec (x)}{-\cot (x)+\csc (x)} \, dx &=\int \frac {\tan (x)}{1-\cos (x)} \, dx\\ &=-\operatorname {Subst}\left (\int \frac {1}{x (1+x)} \, dx,x,-\cos (x)\right )\\ &=-\operatorname {Subst}\left (\int \frac {1}{x} \, dx,x,-\cos (x)\right )+\operatorname {Subst}\left (\int \frac {1}{1+x} \, dx,x,-\cos (x)\right )\\ &=\log (1-\cos (x))-\log (\cos (x))\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 25, normalized size = 1.92 \[ 2 \log \left (\sin \left (\frac {x}{2}\right )\right )-\log \left (1-2 \sin ^2\left (\frac {x}{2}\right )\right ) \]

Antiderivative was successfully verified.

[In]

Integrate[Sec[x]/(-Cot[x] + Csc[x]),x]

[Out]

2*Log[Sin[x/2]] - Log[1 - 2*Sin[x/2]^2]

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fricas [A]  time = 0.54, size = 15, normalized size = 1.15 \[ -\log \left (-\cos \relax (x)\right ) + \log \left (-\frac {1}{2} \, \cos \relax (x) + \frac {1}{2}\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(x)/(-cot(x)+csc(x)),x, algorithm="fricas")

[Out]

-log(-cos(x)) + log(-1/2*cos(x) + 1/2)

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giac [A]  time = 0.26, size = 14, normalized size = 1.08 \[ \log \left (-\cos \relax (x) + 1\right ) - \log \left ({\left | \cos \relax (x) \right |}\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(x)/(-cot(x)+csc(x)),x, algorithm="giac")

[Out]

log(-cos(x) + 1) - log(abs(cos(x)))

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maple [A]  time = 0.09, size = 6, normalized size = 0.46 \[ \ln \left (-1+\sec \relax (x )\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(sec(x)/(-cot(x)+csc(x)),x)

[Out]

ln(-1+sec(x))

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maxima [B]  time = 0.34, size = 41, normalized size = 3.15 \[ -\log \left (\frac {\sin \relax (x)}{\cos \relax (x) + 1} + 1\right ) - \log \left (\frac {\sin \relax (x)}{\cos \relax (x) + 1} - 1\right ) + 2 \, \log \left (\frac {\sin \relax (x)}{\cos \relax (x) + 1}\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(x)/(-cot(x)+csc(x)),x, algorithm="maxima")

[Out]

-log(sin(x)/(cos(x) + 1) + 1) - log(sin(x)/(cos(x) + 1) - 1) + 2*log(sin(x)/(cos(x) + 1))

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mupad [B]  time = 0.61, size = 19, normalized size = 1.46 \[ 2\,\ln \left (\mathrm {tan}\left (\frac {x}{2}\right )\right )-\ln \left ({\mathrm {tan}\left (\frac {x}{2}\right )}^2-1\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(-1/(cos(x)*(cot(x) - 1/sin(x))),x)

[Out]

2*log(tan(x/2)) - log(tan(x/2)^2 - 1)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ - \int \frac {\sec {\relax (x )}}{\cot {\relax (x )} - \csc {\relax (x )}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(x)/(-cot(x)+csc(x)),x)

[Out]

-Integral(sec(x)/(cot(x) - csc(x)), x)

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