3.79 \(\int \sec ^6(a+b x) \tan ^3(a+b x) \, dx\)

Optimal. Leaf size=31 \[ \frac{\sec ^8(a+b x)}{8 b}-\frac{\sec ^6(a+b x)}{6 b} \]

[Out]

-Sec[a + b*x]^6/(6*b) + Sec[a + b*x]^8/(8*b)

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Rubi [A]  time = 0.0321571, antiderivative size = 31, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 17, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.118, Rules used = {2606, 14} \[ \frac{\sec ^8(a+b x)}{8 b}-\frac{\sec ^6(a+b x)}{6 b} \]

Antiderivative was successfully verified.

[In]

Int[Sec[a + b*x]^6*Tan[a + b*x]^3,x]

[Out]

-Sec[a + b*x]^6/(6*b) + Sec[a + b*x]^8/(8*b)

Rule 2606

Int[((a_.)*sec[(e_.) + (f_.)*(x_)])^(m_.)*((b_.)*tan[(e_.) + (f_.)*(x_)])^(n_.), x_Symbol] :> Dist[a/f, Subst[
Int[(a*x)^(m - 1)*(-1 + x^2)^((n - 1)/2), x], x, Sec[e + f*x]], x] /; FreeQ[{a, e, f, m}, x] && IntegerQ[(n -
1)/2] &&  !(IntegerQ[m/2] && LtQ[0, m, n + 1])

Rule 14

Int[(u_)*((c_.)*(x_))^(m_.), x_Symbol] :> Int[ExpandIntegrand[(c*x)^m*u, x], x] /; FreeQ[{c, m}, x] && SumQ[u]
&&  !LinearQ[u, x] &&  !MatchQ[u, (a_) + (b_.)*(v_) /; FreeQ[{a, b}, x] && InverseFunctionQ[v]]

Rubi steps

\begin{align*} \int \sec ^6(a+b x) \tan ^3(a+b x) \, dx &=\frac{\operatorname{Subst}\left (\int x^5 \left (-1+x^2\right ) \, dx,x,\sec (a+b x)\right )}{b}\\ &=\frac{\operatorname{Subst}\left (\int \left (-x^5+x^7\right ) \, dx,x,\sec (a+b x)\right )}{b}\\ &=-\frac{\sec ^6(a+b x)}{6 b}+\frac{\sec ^8(a+b x)}{8 b}\\ \end{align*}

Mathematica [A]  time = 0.0415676, size = 28, normalized size = 0.9 \[ -\frac{4 \sec ^6(a+b x)-3 \sec ^8(a+b x)}{24 b} \]

Antiderivative was successfully verified.

[In]

Integrate[Sec[a + b*x]^6*Tan[a + b*x]^3,x]

[Out]

-(4*Sec[a + b*x]^6 - 3*Sec[a + b*x]^8)/(24*b)

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Maple [B]  time = 0.02, size = 60, normalized size = 1.9 \begin{align*}{\frac{1}{b} \left ({\frac{ \left ( \sin \left ( bx+a \right ) \right ) ^{4}}{8\, \left ( \cos \left ( bx+a \right ) \right ) ^{8}}}+{\frac{ \left ( \sin \left ( bx+a \right ) \right ) ^{4}}{12\, \left ( \cos \left ( bx+a \right ) \right ) ^{6}}}+{\frac{ \left ( \sin \left ( bx+a \right ) \right ) ^{4}}{24\, \left ( \cos \left ( bx+a \right ) \right ) ^{4}}} \right ) } \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(sec(b*x+a)^9*sin(b*x+a)^3,x)

[Out]

1/b*(1/8*sin(b*x+a)^4/cos(b*x+a)^8+1/12*sin(b*x+a)^4/cos(b*x+a)^6+1/24*sin(b*x+a)^4/cos(b*x+a)^4)

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Maxima [B]  time = 1.03137, size = 80, normalized size = 2.58 \begin{align*} \frac{4 \, \sin \left (b x + a\right )^{2} - 1}{24 \,{\left (\sin \left (b x + a\right )^{8} - 4 \, \sin \left (b x + a\right )^{6} + 6 \, \sin \left (b x + a\right )^{4} - 4 \, \sin \left (b x + a\right )^{2} + 1\right )} b} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(b*x+a)^9*sin(b*x+a)^3,x, algorithm="maxima")

[Out]

1/24*(4*sin(b*x + a)^2 - 1)/((sin(b*x + a)^8 - 4*sin(b*x + a)^6 + 6*sin(b*x + a)^4 - 4*sin(b*x + a)^2 + 1)*b)

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Fricas [A]  time = 1.6317, size = 66, normalized size = 2.13 \begin{align*} -\frac{4 \, \cos \left (b x + a\right )^{2} - 3}{24 \, b \cos \left (b x + a\right )^{8}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(b*x+a)^9*sin(b*x+a)^3,x, algorithm="fricas")

[Out]

-1/24*(4*cos(b*x + a)^2 - 3)/(b*cos(b*x + a)^8)

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Sympy [F(-1)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(b*x+a)**9*sin(b*x+a)**3,x)

[Out]

Timed out

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Giac [A]  time = 1.2006, size = 34, normalized size = 1.1 \begin{align*} -\frac{4 \, \cos \left (b x + a\right )^{2} - 3}{24 \, b \cos \left (b x + a\right )^{8}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sec(b*x+a)^9*sin(b*x+a)^3,x, algorithm="giac")

[Out]

-1/24*(4*cos(b*x + a)^2 - 3)/(b*cos(b*x + a)^8)