Optimal. Leaf size=87 \[ (1+i) a e^{(1+i) \text {ArcCos}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},1;\frac {3}{2}-\frac {i}{2};-e^{2 i \text {ArcCos}(a x)}\right )-(2+2 i) a e^{(1+i) \text {ArcCos}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},2;\frac {3}{2}-\frac {i}{2};-e^{2 i \text {ArcCos}(a x)}\right ) \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.08, antiderivative size = 87, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 4, integrand size = 10, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.400, Rules used = {4921, 12, 4559,
2283} \begin {gather*} (1+i) a e^{(1+i) \text {ArcCos}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},1;\frac {3}{2}-\frac {i}{2};-e^{2 i \text {ArcCos}(a x)}\right )-(2+2 i) a e^{(1+i) \text {ArcCos}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},2;\frac {3}{2}-\frac {i}{2};-e^{2 i \text {ArcCos}(a x)}\right ) \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 12
Rule 2283
Rule 4559
Rule 4921
Rubi steps
\begin {align*} \int \frac {e^{\cos ^{-1}(a x)}}{x^2} \, dx &=-\frac {\text {Subst}\left (\int a^2 e^x \sec (x) \tan (x) \, dx,x,\cos ^{-1}(a x)\right )}{a}\\ &=-\left (a \text {Subst}\left (\int e^x \sec (x) \tan (x) \, dx,x,\cos ^{-1}(a x)\right )\right )\\ &=-\left (a \text {Subst}\left (\int \left (\frac {4 i e^{(1+i) x}}{\left (1+e^{2 i x}\right )^2}-\frac {2 i e^{(1+i) x}}{1+e^{2 i x}}\right ) \, dx,x,\cos ^{-1}(a x)\right )\right )\\ &=(2 i a) \text {Subst}\left (\int \frac {e^{(1+i) x}}{1+e^{2 i x}} \, dx,x,\cos ^{-1}(a x)\right )-(4 i a) \text {Subst}\left (\int \frac {e^{(1+i) x}}{\left (1+e^{2 i x}\right )^2} \, dx,x,\cos ^{-1}(a x)\right )\\ &=(1+i) a e^{(1+i) \cos ^{-1}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},1;\frac {3}{2}-\frac {i}{2};-e^{2 i \cos ^{-1}(a x)}\right )-(2+2 i) a e^{(1+i) \cos ^{-1}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},2;\frac {3}{2}-\frac {i}{2};-e^{2 i \cos ^{-1}(a x)}\right )\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.05, size = 55, normalized size = 0.63 \begin {gather*} -\frac {e^{\text {ArcCos}(a x)}}{x}+(1-i) a e^{(1+i) \text {ArcCos}(a x)} \, _2F_1\left (\frac {1}{2}-\frac {i}{2},1;\frac {3}{2}-\frac {i}{2};-e^{2 i \text {ArcCos}(a x)}\right ) \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [F]
time = 0.00, size = 0, normalized size = 0.00 \[\int \frac {{\mathrm e}^{\arccos \left (a x \right )}}{x^{2}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
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]
[Out]
________________________________________________________________________________________
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]
[Out]
________________________________________________________________________________________
Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {e^{\operatorname {acos}{\left (a x \right )}}}{x^{2}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
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]
[Out]
________________________________________________________________________________________
Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {{\mathrm {e}}^{\mathrm {acos}\left (a\,x\right )}}{x^2} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________