Integrand size = 29, antiderivative size = 78 \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=-\frac {8 d \left (c d^2-c e^2 x^2\right )^{3/2}}{15 c e (d+e x)^{3/2}}-\frac {2 \left (c d^2-c e^2 x^2\right )^{3/2}}{5 c e \sqrt {d+e x}} \]
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Time = 0.02 (sec) , antiderivative size = 78, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.069, Rules used = {671, 663} \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=-\frac {2 \left (c d^2-c e^2 x^2\right )^{3/2}}{5 c e \sqrt {d+e x}}-\frac {8 d \left (c d^2-c e^2 x^2\right )^{3/2}}{15 c e (d+e x)^{3/2}} \]
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Rule 663
Rule 671
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \left (c d^2-c e^2 x^2\right )^{3/2}}{5 c e \sqrt {d+e x}}+\frac {1}{5} (4 d) \int \frac {\sqrt {c d^2-c e^2 x^2}}{\sqrt {d+e x}} \, dx \\ & = -\frac {8 d \left (c d^2-c e^2 x^2\right )^{3/2}}{15 c e (d+e x)^{3/2}}-\frac {2 \left (c d^2-c e^2 x^2\right )^{3/2}}{5 c e \sqrt {d+e x}} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 53, normalized size of antiderivative = 0.68 \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=-\frac {2 \left (7 d^2-4 d e x-3 e^2 x^2\right ) \sqrt {c \left (d^2-e^2 x^2\right )}}{15 e \sqrt {d+e x}} \]
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Time = 2.36 (sec) , antiderivative size = 43, normalized size of antiderivative = 0.55
method | result | size |
default | \(-\frac {2 \sqrt {c \left (-x^{2} e^{2}+d^{2}\right )}\, \left (-e x +d \right ) \left (3 e x +7 d \right )}{15 \sqrt {e x +d}\, e}\) | \(43\) |
gosper | \(-\frac {2 \left (-e x +d \right ) \left (3 e x +7 d \right ) \sqrt {-c \,x^{2} e^{2}+c \,d^{2}}}{15 e \sqrt {e x +d}}\) | \(44\) |
risch | \(-\frac {2 \sqrt {-\frac {c \left (x^{2} e^{2}-d^{2}\right )}{e x +d}}\, \sqrt {e x +d}\, c \left (-3 x^{2} e^{2}-4 d e x +7 d^{2}\right ) \left (-e x +d \right )}{15 \sqrt {-c \left (x^{2} e^{2}-d^{2}\right )}\, e \sqrt {-c \left (e x -d \right )}}\) | \(94\) |
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Time = 0.28 (sec) , antiderivative size = 56, normalized size of antiderivative = 0.72 \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=\frac {2 \, \sqrt {-c e^{2} x^{2} + c d^{2}} {\left (3 \, e^{2} x^{2} + 4 \, d e x - 7 \, d^{2}\right )} \sqrt {e x + d}}{15 \, {\left (e^{2} x + d e\right )}} \]
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\[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=\int \sqrt {- c \left (- d + e x\right ) \left (d + e x\right )} \sqrt {d + e x}\, dx \]
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Time = 0.21 (sec) , antiderivative size = 54, normalized size of antiderivative = 0.69 \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=\frac {2 \, {\left (3 \, \sqrt {c} e^{2} x^{2} + 4 \, \sqrt {c} d e x - 7 \, \sqrt {c} d^{2}\right )} {\left (e x + d\right )} \sqrt {-e x + d}}{15 \, {\left (e^{2} x + d e\right )}} \]
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Time = 0.28 (sec) , antiderivative size = 109, normalized size of antiderivative = 1.40 \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=-\frac {2 \, {\left (2 \, \sqrt {2} \sqrt {c d} d^{2} - 5 \, {\left (2 \, \sqrt {2} \sqrt {c d} d - \frac {{\left (-{\left (e x + d\right )} c + 2 \, c d\right )}^{\frac {3}{2}}}{c}\right )} d + \frac {5 \, {\left (-{\left (e x + d\right )} c + 2 \, c d\right )}^{\frac {3}{2}} c d - 3 \, {\left ({\left (e x + d\right )} c - 2 \, c d\right )}^{2} \sqrt {-{\left (e x + d\right )} c + 2 \, c d}}{c^{2}}\right )}}{15 \, e} \]
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Time = 10.01 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.88 \[ \int \sqrt {d+e x} \sqrt {c d^2-c e^2 x^2} \, dx=\frac {\sqrt {c\,d^2-c\,e^2\,x^2}\,\left (\frac {2\,x^2\,\sqrt {d+e\,x}}{5}-\frac {14\,d^2\,\sqrt {d+e\,x}}{15\,e^2}+\frac {8\,d\,x\,\sqrt {d+e\,x}}{15\,e}\right )}{x+\frac {d}{e}} \]
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