Integrand size = 20, antiderivative size = 134 \[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=-\frac {\sqrt {\sqrt {c} d-\sqrt {a} e} \text {arctanh}\left (\frac {\sqrt [4]{c} \sqrt {d+e x}}{\sqrt {\sqrt {c} d-\sqrt {a} e}}\right )}{\sqrt {a} c^{3/4}}+\frac {\sqrt {\sqrt {c} d+\sqrt {a} e} \text {arctanh}\left (\frac {\sqrt [4]{c} \sqrt {d+e x}}{\sqrt {\sqrt {c} d+\sqrt {a} e}}\right )}{\sqrt {a} c^{3/4}} \]
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Time = 0.07 (sec) , antiderivative size = 134, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.150, Rules used = {714, 1144, 214} \[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=\frac {\sqrt {\sqrt {a} e+\sqrt {c} d} \text {arctanh}\left (\frac {\sqrt [4]{c} \sqrt {d+e x}}{\sqrt {\sqrt {a} e+\sqrt {c} d}}\right )}{\sqrt {a} c^{3/4}}-\frac {\sqrt {\sqrt {c} d-\sqrt {a} e} \text {arctanh}\left (\frac {\sqrt [4]{c} \sqrt {d+e x}}{\sqrt {\sqrt {c} d-\sqrt {a} e}}\right )}{\sqrt {a} c^{3/4}} \]
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Rule 214
Rule 714
Rule 1144
Rubi steps \begin{align*} \text {integral}& = (2 e) \text {Subst}\left (\int \frac {x^2}{-c d^2+a e^2+2 c d x^2-c x^4} \, dx,x,\sqrt {d+e x}\right ) \\ & = -\left (\left (\frac {\sqrt {c} d}{\sqrt {a}}-e\right ) \text {Subst}\left (\int \frac {1}{c d-\sqrt {a} \sqrt {c} e-c x^2} \, dx,x,\sqrt {d+e x}\right )\right )+\left (\frac {\sqrt {c} d}{\sqrt {a}}+e\right ) \text {Subst}\left (\int \frac {1}{c d+\sqrt {a} \sqrt {c} e-c x^2} \, dx,x,\sqrt {d+e x}\right ) \\ & = -\frac {\sqrt {\sqrt {c} d-\sqrt {a} e} \tanh ^{-1}\left (\frac {\sqrt [4]{c} \sqrt {d+e x}}{\sqrt {\sqrt {c} d-\sqrt {a} e}}\right )}{\sqrt {a} c^{3/4}}+\frac {\sqrt {\sqrt {c} d+\sqrt {a} e} \tanh ^{-1}\left (\frac {\sqrt [4]{c} \sqrt {d+e x}}{\sqrt {\sqrt {c} d+\sqrt {a} e}}\right )}{\sqrt {a} c^{3/4}} \\ \end{align*}
Time = 0.37 (sec) , antiderivative size = 156, normalized size of antiderivative = 1.16 \[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=\frac {-\sqrt {-c d-\sqrt {a} \sqrt {c} e} \arctan \left (\frac {\sqrt {-c d-\sqrt {a} \sqrt {c} e} \sqrt {d+e x}}{\sqrt {c} d+\sqrt {a} e}\right )+\sqrt {-c d+\sqrt {a} \sqrt {c} e} \arctan \left (\frac {\sqrt {-c d+\sqrt {a} \sqrt {c} e} \sqrt {d+e x}}{\sqrt {c} d-\sqrt {a} e}\right )}{\sqrt {a} c} \]
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Time = 2.11 (sec) , antiderivative size = 127, normalized size of antiderivative = 0.95
method | result | size |
pseudoelliptic | \(-\frac {e \left (\frac {\left (-c d +\sqrt {a c \,e^{2}}\right ) \arctan \left (\frac {c \sqrt {e x +d}}{\sqrt {\left (-c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{\sqrt {\left (-c d +\sqrt {a c \,e^{2}}\right ) c}}-\frac {\left (c d +\sqrt {a c \,e^{2}}\right ) \operatorname {arctanh}\left (\frac {c \sqrt {e x +d}}{\sqrt {\left (c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{\sqrt {\left (c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{\sqrt {a c \,e^{2}}}\) | \(127\) |
derivativedivides | \(-2 e c \left (\frac {\left (-c d +\sqrt {a c \,e^{2}}\right ) \arctan \left (\frac {c \sqrt {e x +d}}{\sqrt {\left (-c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{2 \sqrt {a c \,e^{2}}\, c \sqrt {\left (-c d +\sqrt {a c \,e^{2}}\right ) c}}-\frac {\left (c d +\sqrt {a c \,e^{2}}\right ) \operatorname {arctanh}\left (\frac {c \sqrt {e x +d}}{\sqrt {\left (c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{2 c \sqrt {a c \,e^{2}}\, \sqrt {\left (c d +\sqrt {a c \,e^{2}}\right ) c}}\right )\) | \(143\) |
default | \(-2 e c \left (\frac {\left (-c d +\sqrt {a c \,e^{2}}\right ) \arctan \left (\frac {c \sqrt {e x +d}}{\sqrt {\left (-c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{2 \sqrt {a c \,e^{2}}\, c \sqrt {\left (-c d +\sqrt {a c \,e^{2}}\right ) c}}-\frac {\left (c d +\sqrt {a c \,e^{2}}\right ) \operatorname {arctanh}\left (\frac {c \sqrt {e x +d}}{\sqrt {\left (c d +\sqrt {a c \,e^{2}}\right ) c}}\right )}{2 c \sqrt {a c \,e^{2}}\, \sqrt {\left (c d +\sqrt {a c \,e^{2}}\right ) c}}\right )\) | \(143\) |
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Leaf count of result is larger than twice the leaf count of optimal. 343 vs. \(2 (94) = 188\).
Time = 0.28 (sec) , antiderivative size = 343, normalized size of antiderivative = 2.56 \[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=\frac {1}{2} \, \sqrt {\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} + d}{a c}} \log \left (a c^{2} \sqrt {\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} + d}{a c}} \sqrt {\frac {e^{2}}{a c^{3}}} + \sqrt {e x + d} e\right ) - \frac {1}{2} \, \sqrt {\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} + d}{a c}} \log \left (-a c^{2} \sqrt {\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} + d}{a c}} \sqrt {\frac {e^{2}}{a c^{3}}} + \sqrt {e x + d} e\right ) - \frac {1}{2} \, \sqrt {-\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} - d}{a c}} \log \left (a c^{2} \sqrt {-\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} - d}{a c}} \sqrt {\frac {e^{2}}{a c^{3}}} + \sqrt {e x + d} e\right ) + \frac {1}{2} \, \sqrt {-\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} - d}{a c}} \log \left (-a c^{2} \sqrt {-\frac {a c \sqrt {\frac {e^{2}}{a c^{3}}} - d}{a c}} \sqrt {\frac {e^{2}}{a c^{3}}} + \sqrt {e x + d} e\right ) \]
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\[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=- \int \frac {\sqrt {d + e x}}{- a + c x^{2}}\, dx \]
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\[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=\int { -\frac {\sqrt {e x + d}}{c x^{2} - a} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 203 vs. \(2 (94) = 188\).
Time = 0.30 (sec) , antiderivative size = 203, normalized size of antiderivative = 1.51 \[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=\frac {{\left (c d^{2} e {\left | c \right |} - a e^{3} {\left | c \right |}\right )} \arctan \left (\frac {\sqrt {e x + d}}{\sqrt {-\frac {c d + \sqrt {c^{2} d^{2} - {\left (c d^{2} - a e^{2}\right )} c}}{c}}}\right )}{\sqrt {-c^{2} d - \sqrt {a c} c e} {\left (a c e - \sqrt {a c} c d\right )} {\left | e \right |}} + \frac {{\left (c d^{2} e {\left | c \right |} - a e^{3} {\left | c \right |}\right )} \arctan \left (\frac {\sqrt {e x + d}}{\sqrt {-\frac {c d - \sqrt {c^{2} d^{2} - {\left (c d^{2} - a e^{2}\right )} c}}{c}}}\right )}{\sqrt {-c^{2} d + \sqrt {a c} c e} {\left (a c e + \sqrt {a c} c d\right )} {\left | e \right |}} \]
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Time = 0.34 (sec) , antiderivative size = 302, normalized size of antiderivative = 2.25 \[ \int \frac {\sqrt {d+e x}}{a-c x^2} \, dx=-2\,\mathrm {atanh}\left (\frac {2\,\left (\left (16\,c^3\,d^2\,e^2+16\,a\,c^2\,e^4\right )\,\sqrt {d+e\,x}-\frac {16\,c\,d\,e^2\,\left (e\,\sqrt {a^3\,c^3}+a\,c^2\,d\right )\,\sqrt {d+e\,x}}{a}\right )\,\sqrt {\frac {e\,\sqrt {a^3\,c^3}+a\,c^2\,d}{4\,a^2\,c^3}}}{16\,c^2\,d^2\,e^3-16\,a\,c\,e^5}\right )\,\sqrt {\frac {e\,\sqrt {a^3\,c^3}+a\,c^2\,d}{4\,a^2\,c^3}}-2\,\mathrm {atanh}\left (\frac {2\,\left (\left (16\,c^3\,d^2\,e^2+16\,a\,c^2\,e^4\right )\,\sqrt {d+e\,x}+\frac {16\,c\,d\,e^2\,\left (e\,\sqrt {a^3\,c^3}-a\,c^2\,d\right )\,\sqrt {d+e\,x}}{a}\right )\,\sqrt {-\frac {e\,\sqrt {a^3\,c^3}-a\,c^2\,d}{4\,a^2\,c^3}}}{16\,c^2\,d^2\,e^3-16\,a\,c\,e^5}\right )\,\sqrt {-\frac {e\,\sqrt {a^3\,c^3}-a\,c^2\,d}{4\,a^2\,c^3}} \]
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