Integrand size = 14, antiderivative size = 53 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=\frac {a p \sqrt {x}}{b}-\frac {p x}{2}-\frac {a^2 p \log \left (a+b \sqrt {x}\right )}{b^2}+x \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \]
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Time = 0.02 (sec) , antiderivative size = 53, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {2498, 272, 45} \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=-\frac {a^2 p \log \left (a+b \sqrt {x}\right )}{b^2}+x \log \left (c \left (a+b \sqrt {x}\right )^p\right )+\frac {a p \sqrt {x}}{b}-\frac {p x}{2} \]
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Rule 45
Rule 272
Rule 2498
Rubi steps \begin{align*} \text {integral}& = x \log \left (c \left (a+b \sqrt {x}\right )^p\right )-\frac {1}{2} (b p) \int \frac {\sqrt {x}}{a+b \sqrt {x}} \, dx \\ & = x \log \left (c \left (a+b \sqrt {x}\right )^p\right )-(b p) \text {Subst}\left (\int \frac {x^2}{a+b x} \, dx,x,\sqrt {x}\right ) \\ & = x \log \left (c \left (a+b \sqrt {x}\right )^p\right )-(b p) \text {Subst}\left (\int \left (-\frac {a}{b^2}+\frac {x}{b}+\frac {a^2}{b^2 (a+b x)}\right ) \, dx,x,\sqrt {x}\right ) \\ & = \frac {a p \sqrt {x}}{b}-\frac {p x}{2}-\frac {a^2 p \log \left (a+b \sqrt {x}\right )}{b^2}+x \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 53, normalized size of antiderivative = 1.00 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=\frac {a p \sqrt {x}}{b}-\frac {p x}{2}-\frac {a^2 p \log \left (a+b \sqrt {x}\right )}{b^2}+x \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \]
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Time = 0.25 (sec) , antiderivative size = 52, normalized size of antiderivative = 0.98
method | result | size |
default | \(x \ln \left (c \left (a +b \sqrt {x}\right )^{p}\right )-\frac {p b \left (-\frac {2 \left (-\frac {b x}{2}+a \sqrt {x}\right )}{b^{2}}+\frac {2 a^{2} \ln \left (a +b \sqrt {x}\right )}{b^{3}}\right )}{2}\) | \(52\) |
parts | \(x \ln \left (c \left (a +b \sqrt {x}\right )^{p}\right )-\frac {p b \left (-\frac {2 \left (-\frac {b x}{2}+a \sqrt {x}\right )}{b^{2}}+\frac {2 a^{2} \ln \left (a +b \sqrt {x}\right )}{b^{3}}\right )}{2}\) | \(52\) |
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Time = 0.29 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.96 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=-\frac {b^{2} p x - 2 \, b^{2} x \log \left (c\right ) - 2 \, a b p \sqrt {x} - 2 \, {\left (b^{2} p x - a^{2} p\right )} \log \left (b \sqrt {x} + a\right )}{2 \, b^{2}} \]
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Time = 0.51 (sec) , antiderivative size = 61, normalized size of antiderivative = 1.15 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=- \frac {b p \left (\frac {2 a^{2} \left (\begin {cases} \frac {\sqrt {x}}{a} & \text {for}\: b = 0 \\\frac {\log {\left (a + b \sqrt {x} \right )}}{b} & \text {otherwise} \end {cases}\right )}{b^{2}} - \frac {2 a \sqrt {x}}{b^{2}} + \frac {x}{b}\right )}{2} + x \log {\left (c \left (a + b \sqrt {x}\right )^{p} \right )} \]
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Time = 0.20 (sec) , antiderivative size = 50, normalized size of antiderivative = 0.94 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=-\frac {1}{2} \, b p {\left (\frac {2 \, a^{2} \log \left (b \sqrt {x} + a\right )}{b^{3}} + \frac {b x - 2 \, a \sqrt {x}}{b^{2}}\right )} + x \log \left ({\left (b \sqrt {x} + a\right )}^{p} c\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 97 vs. \(2 (45) = 90\).
Time = 0.29 (sec) , antiderivative size = 97, normalized size of antiderivative = 1.83 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=\frac {\frac {{\left (2 \, {\left (b \sqrt {x} + a\right )}^{2} \log \left (b \sqrt {x} + a\right ) - 4 \, {\left (b \sqrt {x} + a\right )} a \log \left (b \sqrt {x} + a\right ) - {\left (b \sqrt {x} + a\right )}^{2} + 4 \, {\left (b \sqrt {x} + a\right )} a\right )} p}{b} + \frac {2 \, {\left ({\left (b \sqrt {x} + a\right )}^{2} - 2 \, {\left (b \sqrt {x} + a\right )} a\right )} \log \left (c\right )}{b}}{2 \, b} \]
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Time = 0.12 (sec) , antiderivative size = 47, normalized size of antiderivative = 0.89 \[ \int \log \left (c \left (a+b \sqrt {x}\right )^p\right ) \, dx=x\,\ln \left (c\,{\left (a+b\,\sqrt {x}\right )}^p\right )-\frac {p\,\left (b^2\,x+2\,a^2\,\ln \left (a+b\,\sqrt {x}\right )-2\,a\,b\,\sqrt {x}\right )}{2\,b^2} \]
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