Optimal. Leaf size=63 \[ \frac {\tan ^{-1}\left (\frac {\sqrt {b} (c+d x)}{\sqrt {a}}\right )}{2 a^{3/2} \sqrt {b} d}+\frac {c+d x}{2 a d \left (a+b (c+d x)^2\right )} \]
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Rubi [A] time = 0.03, antiderivative size = 63, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {247, 199, 205} \[ \frac {\tan ^{-1}\left (\frac {\sqrt {b} (c+d x)}{\sqrt {a}}\right )}{2 a^{3/2} \sqrt {b} d}+\frac {c+d x}{2 a d \left (a+b (c+d x)^2\right )} \]
Antiderivative was successfully verified.
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Rule 199
Rule 205
Rule 247
Rubi steps
\begin {align*} \int \frac {1}{\left (a+b (c+d x)^2\right )^2} \, dx &=\frac {\operatorname {Subst}\left (\int \frac {1}{\left (a+b x^2\right )^2} \, dx,x,c+d x\right )}{d}\\ &=\frac {c+d x}{2 a d \left (a+b (c+d x)^2\right )}+\frac {\operatorname {Subst}\left (\int \frac {1}{a+b x^2} \, dx,x,c+d x\right )}{2 a d}\\ &=\frac {c+d x}{2 a d \left (a+b (c+d x)^2\right )}+\frac {\tan ^{-1}\left (\frac {\sqrt {b} (c+d x)}{\sqrt {a}}\right )}{2 a^{3/2} \sqrt {b} d}\\ \end {align*}
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Mathematica [A] time = 0.04, size = 60, normalized size = 0.95 \[ \frac {\frac {\sqrt {a} (c+d x)}{a+b (c+d x)^2}+\frac {\tan ^{-1}\left (\frac {\sqrt {b} (c+d x)}{\sqrt {a}}\right )}{\sqrt {b}}}{2 a^{3/2} d} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.56, size = 253, normalized size = 4.02 \[ \left [\frac {2 \, a b d x + 2 \, a b c - {\left (b d^{2} x^{2} + 2 \, b c d x + b c^{2} + a\right )} \sqrt {-a b} \log \left (\frac {b d^{2} x^{2} + 2 \, b c d x + b c^{2} - 2 \, \sqrt {-a b} {\left (d x + c\right )} - a}{b d^{2} x^{2} + 2 \, b c d x + b c^{2} + a}\right )}{4 \, {\left (a^{2} b^{2} d^{3} x^{2} + 2 \, a^{2} b^{2} c d^{2} x + {\left (a^{2} b^{2} c^{2} + a^{3} b\right )} d\right )}}, \frac {a b d x + a b c + {\left (b d^{2} x^{2} + 2 \, b c d x + b c^{2} + a\right )} \sqrt {a b} \arctan \left (\frac {\sqrt {a b} {\left (d x + c\right )}}{a}\right )}{2 \, {\left (a^{2} b^{2} d^{3} x^{2} + 2 \, a^{2} b^{2} c d^{2} x + {\left (a^{2} b^{2} c^{2} + a^{3} b\right )} d\right )}}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.36, size = 65, normalized size = 1.03 \[ \frac {\arctan \left (\frac {b d x + b c}{\sqrt {a b}}\right )}{2 \, \sqrt {a b} a d} + \frac {d x + c}{2 \, {\left (b d^{2} x^{2} + 2 \, b c d x + b c^{2} + a\right )} a d} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.00, size = 86, normalized size = 1.37 \[ \frac {\arctan \left (\frac {2 b \,d^{2} x +2 b d c}{2 \sqrt {a b}\, d}\right )}{2 \sqrt {a b}\, a d}+\frac {2 b \,d^{2} x +2 b d c}{4 \left (b \,d^{2} x^{2}+2 b c d x +b \,c^{2}+a \right ) a b \,d^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.56, size = 75, normalized size = 1.19 \[ \frac {d x + c}{2 \, {\left (a b d^{3} x^{2} + 2 \, a b c d^{2} x + {\left (a b c^{2} + a^{2}\right )} d\right )}} + \frac {\arctan \left (\frac {b d^{2} x + b c d}{\sqrt {a b} d}\right )}{2 \, \sqrt {a b} a d} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.10, size = 76, normalized size = 1.21 \[ \frac {\frac {x}{2\,a}+\frac {c}{2\,a\,d}}{b\,c^2+2\,b\,c\,d\,x+b\,d^2\,x^2+a}+\frac {\mathrm {atan}\left (2\,a\,\left (\frac {\sqrt {b}\,c}{2\,a^{3/2}}+\frac {\sqrt {b}\,d\,x}{2\,a^{3/2}}\right )\right )}{2\,a^{3/2}\,\sqrt {b}\,d} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [B] time = 0.58, size = 117, normalized size = 1.86 \[ \frac {c + d x}{2 a^{2} d + 2 a b c^{2} d + 4 a b c d^{2} x + 2 a b d^{3} x^{2}} + \frac {- \frac {\sqrt {- \frac {1}{a^{3} b}} \log {\left (x + \frac {- a^{2} \sqrt {- \frac {1}{a^{3} b}} + c}{d} \right )}}{4} + \frac {\sqrt {- \frac {1}{a^{3} b}} \log {\left (x + \frac {a^{2} \sqrt {- \frac {1}{a^{3} b}} + c}{d} \right )}}{4}}{d} \]
Verification of antiderivative is not currently implemented for this CAS.
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