3.9.42 \(\int \frac {(e x)^m (a+b x^4)}{\sqrt {c+d x^4}} \, dx\) [842]

Optimal. Leaf size=123 \[ \frac {b (e x)^{1+m} \sqrt {c+d x^4}}{d e (3+m)}-\frac {(b c (1+m)-a d (3+m)) (e x)^{1+m} \sqrt {1+\frac {d x^4}{c}} \, _2F_1\left (\frac {1}{2},\frac {1+m}{4};\frac {5+m}{4};-\frac {d x^4}{c}\right )}{d e (1+m) (3+m) \sqrt {c+d x^4}} \]

[Out]

b*(e*x)^(1+m)*(d*x^4+c)^(1/2)/d/e/(3+m)-(b*c*(1+m)-a*d*(3+m))*(e*x)^(1+m)*hypergeom([1/2, 1/4+1/4*m],[5/4+1/4*
m],-d*x^4/c)*(1+d*x^4/c)^(1/2)/d/e/(1+m)/(3+m)/(d*x^4+c)^(1/2)

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Rubi [A]
time = 0.04, antiderivative size = 115, normalized size of antiderivative = 0.93, number of steps used = 3, number of rules used = 3, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {470, 372, 371} \begin {gather*} \frac {\sqrt {\frac {d x^4}{c}+1} (e x)^{m+1} \left (\frac {a}{m+1}-\frac {b c}{d (m+3)}\right ) \, _2F_1\left (\frac {1}{2},\frac {m+1}{4};\frac {m+5}{4};-\frac {d x^4}{c}\right )}{e \sqrt {c+d x^4}}+\frac {b \sqrt {c+d x^4} (e x)^{m+1}}{d e (m+3)} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[((e*x)^m*(a + b*x^4))/Sqrt[c + d*x^4],x]

[Out]

(b*(e*x)^(1 + m)*Sqrt[c + d*x^4])/(d*e*(3 + m)) + ((a/(1 + m) - (b*c)/(d*(3 + m)))*(e*x)^(1 + m)*Sqrt[1 + (d*x
^4)/c]*Hypergeometric2F1[1/2, (1 + m)/4, (5 + m)/4, -((d*x^4)/c)])/(e*Sqrt[c + d*x^4])

Rule 371

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[a^p*((c*x)^(m + 1)/(c*(m + 1)))*Hyperg
eometric2F1[-p, (m + 1)/n, (m + 1)/n + 1, (-b)*(x^n/a)], x] /; FreeQ[{a, b, c, m, n, p}, x] &&  !IGtQ[p, 0] &&
(ILtQ[p, 0] || GtQ[a, 0])

Rule 372

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

Rule 470

Int[((e_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n_)), x_Symbol] :> Simp[d*(e*x)^(m +
1)*((a + b*x^n)^(p + 1)/(b*e*(m + n*(p + 1) + 1))), x] - Dist[(a*d*(m + 1) - b*c*(m + n*(p + 1) + 1))/(b*(m +
n*(p + 1) + 1)), Int[(e*x)^m*(a + b*x^n)^p, x], x] /; FreeQ[{a, b, c, d, e, m, n, p}, x] && NeQ[b*c - a*d, 0]
&& NeQ[m + n*(p + 1) + 1, 0]

Rubi steps

\begin {align*} \int \frac {(e x)^m \left (a+b x^4\right )}{\sqrt {c+d x^4}} \, dx &=\frac {b (e x)^{1+m} \sqrt {c+d x^4}}{d e (3+m)}-\left (-a+\frac {b c (1+m)}{d (3+m)}\right ) \int \frac {(e x)^m}{\sqrt {c+d x^4}} \, dx\\ &=\frac {b (e x)^{1+m} \sqrt {c+d x^4}}{d e (3+m)}-\frac {\left (\left (-a+\frac {b c (1+m)}{d (3+m)}\right ) \sqrt {1+\frac {d x^4}{c}}\right ) \int \frac {(e x)^m}{\sqrt {1+\frac {d x^4}{c}}} \, dx}{\sqrt {c+d x^4}}\\ &=\frac {b (e x)^{1+m} \sqrt {c+d x^4}}{d e (3+m)}+\frac {\left (a-\frac {b c (1+m)}{d (3+m)}\right ) (e x)^{1+m} \sqrt {1+\frac {d x^4}{c}} \, _2F_1\left (\frac {1}{2},\frac {1+m}{4};\frac {5+m}{4};-\frac {d x^4}{c}\right )}{e (1+m) \sqrt {c+d x^4}}\\ \end {align*}

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Mathematica [A]
time = 1.43, size = 110, normalized size = 0.89 \begin {gather*} \frac {x (e x)^m \sqrt {c+d x^4} \left (b c \, _2F_1\left (-\frac {1}{2},\frac {1+m}{4};\frac {5+m}{4};-\frac {d x^4}{c}\right )+(-b c+a d) \, _2F_1\left (\frac {1}{2},\frac {1+m}{4};\frac {5+m}{4};-\frac {d x^4}{c}\right )\right )}{c d (1+m) \sqrt {1+\frac {d x^4}{c}}} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[((e*x)^m*(a + b*x^4))/Sqrt[c + d*x^4],x]

[Out]

(x*(e*x)^m*Sqrt[c + d*x^4]*(b*c*Hypergeometric2F1[-1/2, (1 + m)/4, (5 + m)/4, -((d*x^4)/c)] + (-(b*c) + a*d)*H
ypergeometric2F1[1/2, (1 + m)/4, (5 + m)/4, -((d*x^4)/c)]))/(c*d*(1 + m)*Sqrt[1 + (d*x^4)/c])

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Maple [F]
time = 0.04, size = 0, normalized size = 0.00 \[\int \frac {\left (e x \right )^{m} \left (b \,x^{4}+a \right )}{\sqrt {d \,x^{4}+c}}\, dx\]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((e*x)^m*(b*x^4+a)/(d*x^4+c)^(1/2),x)

[Out]

int((e*x)^m*(b*x^4+a)/(d*x^4+c)^(1/2),x)

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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)^m*(b*x^4+a)/(d*x^4+c)^(1/2),x, algorithm="maxima")

[Out]

integrate((b*x^4 + a)*(x*e)^m/sqrt(d*x^4 + c), x)

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Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)^m*(b*x^4+a)/(d*x^4+c)^(1/2),x, algorithm="fricas")

[Out]

integral((b*x^4 + a)*(x*e)^m/sqrt(d*x^4 + c), x)

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Sympy [C] Result contains complex when optimal does not.
time = 2.48, size = 119, normalized size = 0.97 \begin {gather*} \frac {a e^{m} x x^{m} \Gamma \left (\frac {m}{4} + \frac {1}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{2}, \frac {m}{4} + \frac {1}{4} \\ \frac {m}{4} + \frac {5}{4} \end {matrix}\middle | {\frac {d x^{4} e^{i \pi }}{c}} \right )}}{4 \sqrt {c} \Gamma \left (\frac {m}{4} + \frac {5}{4}\right )} + \frac {b e^{m} x^{5} x^{m} \Gamma \left (\frac {m}{4} + \frac {5}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{2}, \frac {m}{4} + \frac {5}{4} \\ \frac {m}{4} + \frac {9}{4} \end {matrix}\middle | {\frac {d x^{4} e^{i \pi }}{c}} \right )}}{4 \sqrt {c} \Gamma \left (\frac {m}{4} + \frac {9}{4}\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)**m*(b*x**4+a)/(d*x**4+c)**(1/2),x)

[Out]

a*e**m*x*x**m*gamma(m/4 + 1/4)*hyper((1/2, m/4 + 1/4), (m/4 + 5/4,), d*x**4*exp_polar(I*pi)/c)/(4*sqrt(c)*gamm
a(m/4 + 5/4)) + b*e**m*x**5*x**m*gamma(m/4 + 5/4)*hyper((1/2, m/4 + 5/4), (m/4 + 9/4,), d*x**4*exp_polar(I*pi)
/c)/(4*sqrt(c)*gamma(m/4 + 9/4))

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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)^m*(b*x^4+a)/(d*x^4+c)^(1/2),x, algorithm="giac")

[Out]

integrate((b*x^4 + a)*(x*e)^m/sqrt(d*x^4 + c), x)

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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {{\left (e\,x\right )}^m\,\left (b\,x^4+a\right )}{\sqrt {d\,x^4+c}} \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(((e*x)^m*(a + b*x^4))/(c + d*x^4)^(1/2),x)

[Out]

int(((e*x)^m*(a + b*x^4))/(c + d*x^4)^(1/2), x)

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