3.303 \(\int \frac {\cot ^2(c+d x) (a B+b B \tan (c+d x))}{a+b \tan (c+d x)} \, dx\)

Optimal. Leaf size=17 \[ -\frac {B \cot (c+d x)}{d}-B x \]

[Out]

-B*x-B*cot(d*x+c)/d

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Rubi [A]  time = 0.01, antiderivative size = 17, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 34, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.088, Rules used = {21, 3473, 8} \[ -\frac {B \cot (c+d x)}{d}-B x \]

Antiderivative was successfully verified.

[In]

Int[(Cot[c + d*x]^2*(a*B + b*B*Tan[c + d*x]))/(a + b*Tan[c + d*x]),x]

[Out]

-(B*x) - (B*Cot[c + d*x])/d

Rule 8

Int[a_, x_Symbol] :> Simp[a*x, x] /; FreeQ[a, x]

Rule 21

Int[(u_.)*((a_) + (b_.)*(v_))^(m_.)*((c_) + (d_.)*(v_))^(n_.), x_Symbol] :> Dist[(b/d)^m, Int[u*(c + d*v)^(m +
n), x], x] /; FreeQ[{a, b, c, d, n}, x] && EqQ[b*c - a*d, 0] && IntegerQ[m] && ( !IntegerQ[n] || SimplerQ[c +
d*x, a + b*x])

Rule 3473

Int[((b_.)*tan[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[(b*(b*Tan[c + d*x])^(n - 1))/(d*(n - 1)), x] - Dis
t[b^2, Int[(b*Tan[c + d*x])^(n - 2), x], x] /; FreeQ[{b, c, d}, x] && GtQ[n, 1]

Rubi steps

\begin {align*} \int \frac {\cot ^2(c+d x) (a B+b B \tan (c+d x))}{a+b \tan (c+d x)} \, dx &=B \int \cot ^2(c+d x) \, dx\\ &=-\frac {B \cot (c+d x)}{d}-B \int 1 \, dx\\ &=-B x-\frac {B \cot (c+d x)}{d}\\ \end {align*}

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Mathematica [C]  time = 0.02, size = 30, normalized size = 1.76 \[ -\frac {B \cot (c+d x) \, _2F_1\left (-\frac {1}{2},1;\frac {1}{2};-\tan ^2(c+d x)\right )}{d} \]

Antiderivative was successfully verified.

[In]

Integrate[(Cot[c + d*x]^2*(a*B + b*B*Tan[c + d*x]))/(a + b*Tan[c + d*x]),x]

[Out]

-((B*Cot[c + d*x]*Hypergeometric2F1[-1/2, 1, 1/2, -Tan[c + d*x]^2])/d)

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fricas [B]  time = 0.79, size = 42, normalized size = 2.47 \[ -\frac {B d x \sin \left (2 \, d x + 2 \, c\right ) + B \cos \left (2 \, d x + 2 \, c\right ) + B}{d \sin \left (2 \, d x + 2 \, c\right )} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)^2*(a*B+b*B*tan(d*x+c))/(a+b*tan(d*x+c)),x, algorithm="fricas")

[Out]

-(B*d*x*sin(2*d*x + 2*c) + B*cos(2*d*x + 2*c) + B)/(d*sin(2*d*x + 2*c))

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giac [B]  time = 0.28, size = 39, normalized size = 2.29 \[ -\frac {2 \, {\left (d x + c\right )} B - B \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + \frac {B}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )}}{2 \, d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)^2*(a*B+b*B*tan(d*x+c))/(a+b*tan(d*x+c)),x, algorithm="giac")

[Out]

-1/2*(2*(d*x + c)*B - B*tan(1/2*d*x + 1/2*c) + B/tan(1/2*d*x + 1/2*c))/d

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maple [A]  time = 0.29, size = 22, normalized size = 1.29 \[ \frac {B \left (-\cot \left (d x +c \right )-d x -c \right )}{d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(cot(d*x+c)^2*(a*B+b*B*tan(d*x+c))/(a+b*tan(d*x+c)),x)

[Out]

1/d*B*(-cot(d*x+c)-d*x-c)

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maxima [A]  time = 0.96, size = 23, normalized size = 1.35 \[ -\frac {{\left (d x + c\right )} B + \frac {B}{\tan \left (d x + c\right )}}{d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)^2*(a*B+b*B*tan(d*x+c))/(a+b*tan(d*x+c)),x, algorithm="maxima")

[Out]

-((d*x + c)*B + B/tan(d*x + c))/d

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mupad [B]  time = 6.25, size = 16, normalized size = 0.94 \[ -\frac {B\,\left (\mathrm {cot}\left (c+d\,x\right )+d\,x\right )}{d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((cot(c + d*x)^2*(B*a + B*b*tan(c + d*x)))/(a + b*tan(c + d*x)),x)

[Out]

-(B*(cot(c + d*x) + d*x))/d

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sympy [A]  time = 0.99, size = 37, normalized size = 2.18 \[ \begin {cases} - B x - \frac {B \cot {\left (c + d x \right )}}{d} & \text {for}\: d \neq 0 \\\frac {x \left (B a + B b \tan {\relax (c )}\right ) \cot ^{2}{\relax (c )}}{a + b \tan {\relax (c )}} & \text {otherwise} \end {cases} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)**2*(a*B+b*B*tan(d*x+c))/(a+b*tan(d*x+c)),x)

[Out]

Piecewise((-B*x - B*cot(c + d*x)/d, Ne(d, 0)), (x*(B*a + B*b*tan(c))*cot(c)**2/(a + b*tan(c)), True))

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