3.567 \(\int \frac{b+c+\cosh (x)}{a-b \sinh (x)} \, dx\)

Optimal. Leaf size=53 \[ \frac{2 (b+c) \tanh ^{-1}\left (\frac{a \tanh \left (\frac{x}{2}\right )+b}{\sqrt{a^2+b^2}}\right )}{\sqrt{a^2+b^2}}-\frac{\log (a-b \sinh (x))}{b} \]

[Out]

(2*(b + c)*ArcTanh[(b + a*Tanh[x/2])/Sqrt[a^2 + b^2]])/Sqrt[a^2 + b^2] - Log[a - b*Sinh[x]]/b

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Rubi [A]  time = 0.132723, antiderivative size = 53, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 6, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.4, Rules used = {4401, 2660, 618, 206, 2668, 31} \[ \frac{2 (b+c) \tanh ^{-1}\left (\frac{a \tanh \left (\frac{x}{2}\right )+b}{\sqrt{a^2+b^2}}\right )}{\sqrt{a^2+b^2}}-\frac{\log (a-b \sinh (x))}{b} \]

Antiderivative was successfully verified.

[In]

Int[(b + c + Cosh[x])/(a - b*Sinh[x]),x]

[Out]

(2*(b + c)*ArcTanh[(b + a*Tanh[x/2])/Sqrt[a^2 + b^2]])/Sqrt[a^2 + b^2] - Log[a - b*Sinh[x]]/b

Rule 4401

Int[u_, x_Symbol] :> With[{v = ExpandTrig[u, x]}, Int[v, x] /; SumQ[v]] /;  !InertTrigFreeQ[u]

Rule 2660

Int[((a_) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(-1), x_Symbol] :> With[{e = FreeFactors[Tan[(c + d*x)/2], x]}, Dis
t[(2*e)/d, Subst[Int[1/(a + 2*b*e*x + a*e^2*x^2), x], x, Tan[(c + d*x)/2]/e], x]] /; FreeQ[{a, b, c, d}, x] &&
NeQ[a^2 - b^2, 0]

Rule 618

Int[((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(-1), x_Symbol] :> Dist[-2, Subst[Int[1/Simp[b^2 - 4*a*c - x^2, x], x]
, x, b + 2*c*x], x] /; FreeQ[{a, b, c}, x] && NeQ[b^2 - 4*a*c, 0]

Rule 206

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(1*ArcTanh[(Rt[-b, 2]*x)/Rt[a, 2]])/(Rt[a, 2]*Rt[-b, 2]), x]
/; FreeQ[{a, b}, x] && NegQ[a/b] && (GtQ[a, 0] || LtQ[b, 0])

Rule 2668

Int[cos[(e_.) + (f_.)*(x_)]^(p_.)*((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.), x_Symbol] :> Dist[1/(b^p*f), S
ubst[Int[(a + x)^m*(b^2 - x^2)^((p - 1)/2), x], x, b*Sin[e + f*x]], x] /; FreeQ[{a, b, e, f, m}, x] && Integer
Q[(p - 1)/2] && NeQ[a^2 - b^2, 0]

Rule 31

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

Rubi steps

\begin{align*} \int \frac{b+c+\cosh (x)}{a-b \sinh (x)} \, dx &=\int \left (\frac{\left (1+\frac{b}{c}\right ) c}{a-b \sinh (x)}+\frac{\cosh (x)}{a-b \sinh (x)}\right ) \, dx\\ &=(b+c) \int \frac{1}{a-b \sinh (x)} \, dx+\int \frac{\cosh (x)}{a-b \sinh (x)} \, dx\\ &=-\frac{\operatorname{Subst}\left (\int \frac{1}{a+x} \, dx,x,-b \sinh (x)\right )}{b}+(2 (b+c)) \operatorname{Subst}\left (\int \frac{1}{a-2 b x-a x^2} \, dx,x,\tanh \left (\frac{x}{2}\right )\right )\\ &=-\frac{\log (a-b \sinh (x))}{b}-(4 (b+c)) \operatorname{Subst}\left (\int \frac{1}{4 \left (a^2+b^2\right )-x^2} \, dx,x,-2 b-2 a \tanh \left (\frac{x}{2}\right )\right )\\ &=\frac{2 (b+c) \tanh ^{-1}\left (\frac{b+a \tanh \left (\frac{x}{2}\right )}{\sqrt{a^2+b^2}}\right )}{\sqrt{a^2+b^2}}-\frac{\log (a-b \sinh (x))}{b}\\ \end{align*}

Mathematica [A]  time = 0.105536, size = 62, normalized size = 1.17 \[ -\frac{2 (b+c) \tan ^{-1}\left (\frac{a \tanh \left (\frac{x}{2}\right )+b}{\sqrt{-a^2-b^2}}\right )}{\sqrt{-a^2-b^2}}-\frac{\log (b \sinh (x)-a)}{b} \]

Antiderivative was successfully verified.

[In]

Integrate[(b + c + Cosh[x])/(a - b*Sinh[x]),x]

[Out]

(-2*(b + c)*ArcTan[(b + a*Tanh[x/2])/Sqrt[-a^2 - b^2]])/Sqrt[-a^2 - b^2] - Log[-a + b*Sinh[x]]/b

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Maple [B]  time = 0.023, size = 119, normalized size = 2.3 \begin{align*}{\frac{1}{b}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) }+{\frac{1}{b}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) }-{\frac{1}{b}\ln \left ( a \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) ^{2}+2\,\tanh \left ( x/2 \right ) b-a \right ) }+2\,{\frac{b}{\sqrt{{a}^{2}+{b}^{2}}}{\it Artanh} \left ( 1/2\,{\frac{2\,a\tanh \left ( x/2 \right ) +2\,b}{\sqrt{{a}^{2}+{b}^{2}}}} \right ) }+2\,{\frac{c}{\sqrt{{a}^{2}+{b}^{2}}}{\it Artanh} \left ( 1/2\,{\frac{2\,a\tanh \left ( x/2 \right ) +2\,b}{\sqrt{{a}^{2}+{b}^{2}}}} \right ) } \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b+c+cosh(x))/(a-b*sinh(x)),x)

[Out]

1/b*ln(tanh(1/2*x)+1)+1/b*ln(tanh(1/2*x)-1)-1/b*ln(a*tanh(1/2*x)^2+2*tanh(1/2*x)*b-a)+2*b/(a^2+b^2)^(1/2)*arct
anh(1/2*(2*a*tanh(1/2*x)+2*b)/(a^2+b^2)^(1/2))+2/(a^2+b^2)^(1/2)*arctanh(1/2*(2*a*tanh(1/2*x)+2*b)/(a^2+b^2)^(
1/2))*c

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Maxima [F(-2)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b+c+cosh(x))/(a-b*sinh(x)),x, algorithm="maxima")

[Out]

Exception raised: ValueError

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Fricas [B]  time = 2.56922, size = 458, normalized size = 8.64 \begin{align*} \frac{\sqrt{a^{2} + b^{2}}{\left (b^{2} + b c\right )} \log \left (\frac{b^{2} \cosh \left (x\right )^{2} + b^{2} \sinh \left (x\right )^{2} - 2 \, a b \cosh \left (x\right ) + 2 \, a^{2} + b^{2} + 2 \,{\left (b^{2} \cosh \left (x\right ) - a b\right )} \sinh \left (x\right ) + 2 \, \sqrt{a^{2} + b^{2}}{\left (b \cosh \left (x\right ) + b \sinh \left (x\right ) - a\right )}}{b \cosh \left (x\right )^{2} + b \sinh \left (x\right )^{2} - 2 \, a \cosh \left (x\right ) + 2 \,{\left (b \cosh \left (x\right ) - a\right )} \sinh \left (x\right ) - b}\right ) +{\left (a^{2} + b^{2}\right )} x -{\left (a^{2} + b^{2}\right )} \log \left (\frac{2 \,{\left (b \sinh \left (x\right ) - a\right )}}{\cosh \left (x\right ) - \sinh \left (x\right )}\right )}{a^{2} b + b^{3}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b+c+cosh(x))/(a-b*sinh(x)),x, algorithm="fricas")

[Out]

(sqrt(a^2 + b^2)*(b^2 + b*c)*log((b^2*cosh(x)^2 + b^2*sinh(x)^2 - 2*a*b*cosh(x) + 2*a^2 + b^2 + 2*(b^2*cosh(x)
- a*b)*sinh(x) + 2*sqrt(a^2 + b^2)*(b*cosh(x) + b*sinh(x) - a))/(b*cosh(x)^2 + b*sinh(x)^2 - 2*a*cosh(x) + 2*
(b*cosh(x) - a)*sinh(x) - b)) + (a^2 + b^2)*x - (a^2 + b^2)*log(2*(b*sinh(x) - a)/(cosh(x) - sinh(x))))/(a^2*b
+ b^3)

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Sympy [A]  time = 94.6613, size = 772, normalized size = 14.57 \begin{align*} \text{result too large to display} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b+c+cosh(x))/(a-b*sinh(x)),x)

[Out]

Piecewise((zoo*(c*log(tanh(x/2)) + x - 2*log(tanh(x/2) + 1) + log(tanh(x/2))), Eq(a, 0) & Eq(b, 0)), (-(b*log(
tanh(x/2)) + c*log(tanh(x/2)) + x - 2*log(tanh(x/2) + 1) + log(tanh(x/2)))/b, Eq(a, 0)), (2*I*b/(b*tanh(x/2) +
I*b) + 2*I*c/(b*tanh(x/2) + I*b) - x*tanh(x/2)/(b*tanh(x/2) + I*b) - I*x/(b*tanh(x/2) + I*b) + 2*log(tanh(x/2
) + 1)*tanh(x/2)/(b*tanh(x/2) + I*b) + 2*I*log(tanh(x/2) + 1)/(b*tanh(x/2) + I*b) - 2*log(tanh(x/2) + I)*tanh(
x/2)/(b*tanh(x/2) + I*b) - 2*I*log(tanh(x/2) + I)/(b*tanh(x/2) + I*b), Eq(a, -I*b)), (2*I*b/(-b*tanh(x/2) + I*
b) + 2*I*c/(-b*tanh(x/2) + I*b) + x*tanh(x/2)/(-b*tanh(x/2) + I*b) - I*x/(-b*tanh(x/2) + I*b) - 2*log(tanh(x/2
) + 1)*tanh(x/2)/(-b*tanh(x/2) + I*b) + 2*I*log(tanh(x/2) + 1)/(-b*tanh(x/2) + I*b) + 2*log(tanh(x/2) - I)*tan
h(x/2)/(-b*tanh(x/2) + I*b) - 2*I*log(tanh(x/2) - I)/(-b*tanh(x/2) + I*b), Eq(a, I*b)), ((c*x + sinh(x))/a, Eq
(b, 0)), (-a**2*x/(a**2*b + b**3) + 2*a**2*log(tanh(x/2) + 1)/(a**2*b + b**3) - a**2*log(tanh(x/2) + b/a - sqr
t(a**2 + b**2)/a)/(a**2*b + b**3) - a**2*log(tanh(x/2) + b/a + sqrt(a**2 + b**2)/a)/(a**2*b + b**3) - b**2*x/(
a**2*b + b**3) - b**2*sqrt(a**2 + b**2)*log(tanh(x/2) + b/a - sqrt(a**2 + b**2)/a)/(a**2*b + b**3) + b**2*sqrt
(a**2 + b**2)*log(tanh(x/2) + b/a + sqrt(a**2 + b**2)/a)/(a**2*b + b**3) + 2*b**2*log(tanh(x/2) + 1)/(a**2*b +
b**3) - b**2*log(tanh(x/2) + b/a - sqrt(a**2 + b**2)/a)/(a**2*b + b**3) - b**2*log(tanh(x/2) + b/a + sqrt(a**
2 + b**2)/a)/(a**2*b + b**3) - b*c*sqrt(a**2 + b**2)*log(tanh(x/2) + b/a - sqrt(a**2 + b**2)/a)/(a**2*b + b**3
) + b*c*sqrt(a**2 + b**2)*log(tanh(x/2) + b/a + sqrt(a**2 + b**2)/a)/(a**2*b + b**3), True))

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Giac [A]  time = 1.16626, size = 119, normalized size = 2.25 \begin{align*} -\frac{{\left (b + c\right )} \log \left (\frac{{\left | 2 \, b e^{x} - 2 \, a - 2 \, \sqrt{a^{2} + b^{2}} \right |}}{{\left | 2 \, b e^{x} - 2 \, a + 2 \, \sqrt{a^{2} + b^{2}} \right |}}\right )}{\sqrt{a^{2} + b^{2}}} + \frac{x}{b} - \frac{\log \left ({\left | b e^{\left (2 \, x\right )} - 2 \, a e^{x} - b \right |}\right )}{b} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b+c+cosh(x))/(a-b*sinh(x)),x, algorithm="giac")

[Out]

-(b + c)*log(abs(2*b*e^x - 2*a - 2*sqrt(a^2 + b^2))/abs(2*b*e^x - 2*a + 2*sqrt(a^2 + b^2)))/sqrt(a^2 + b^2) +
x/b - log(abs(b*e^(2*x) - 2*a*e^x - b))/b