Integrand size = 22, antiderivative size = 108 \[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\frac {2 \operatorname {EllipticF}\left (\frac {1}{2} \left (d+e x-\tan ^{-1}(b,c)\right ),\frac {2 \sqrt {b^2+c^2}}{a+\sqrt {b^2+c^2}}\right ) \sqrt {\frac {a+b \cos (d+e x)+c \sin (d+e x)}{a+\sqrt {b^2+c^2}}}}{e \sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \]
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Time = 0.09 (sec) , antiderivative size = 108, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {3206, 2740} \[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\frac {2 \sqrt {\frac {a+b \cos (d+e x)+c \sin (d+e x)}{a+\sqrt {b^2+c^2}}} \operatorname {EllipticF}\left (\frac {1}{2} \left (d+e x-\tan ^{-1}(b,c)\right ),\frac {2 \sqrt {b^2+c^2}}{a+\sqrt {b^2+c^2}}\right )}{e \sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \]
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Rule 2740
Rule 3206
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {\frac {a+b \cos (d+e x)+c \sin (d+e x)}{a+\sqrt {b^2+c^2}}} \int \frac {1}{\sqrt {\frac {a}{a+\sqrt {b^2+c^2}}+\frac {\sqrt {b^2+c^2} \cos \left (d+e x-\tan ^{-1}(b,c)\right )}{a+\sqrt {b^2+c^2}}}} \, dx}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \\ & = \frac {2 \operatorname {EllipticF}\left (\frac {1}{2} \left (d+e x-\tan ^{-1}(b,c)\right ),\frac {2 \sqrt {b^2+c^2}}{a+\sqrt {b^2+c^2}}\right ) \sqrt {\frac {a+b \cos (d+e x)+c \sin (d+e x)}{a+\sqrt {b^2+c^2}}}}{e \sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \\ \end{align*}
Result contains higher order function than in optimal. Order 6 vs. order 4 in optimal.
Time = 0.68 (sec) , antiderivative size = 285, normalized size of antiderivative = 2.64 \[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\frac {2 \operatorname {AppellF1}\left (\frac {1}{2},\frac {1}{2},\frac {1}{2},\frac {3}{2},\frac {a+\sqrt {1+\frac {b^2}{c^2}} c \sin \left (d+e x+\arctan \left (\frac {b}{c}\right )\right )}{a-\sqrt {1+\frac {b^2}{c^2}} c},\frac {a+\sqrt {1+\frac {b^2}{c^2}} c \sin \left (d+e x+\arctan \left (\frac {b}{c}\right )\right )}{a+\sqrt {1+\frac {b^2}{c^2}} c}\right ) \sec \left (d+e x+\arctan \left (\frac {b}{c}\right )\right ) \sqrt {-\frac {\sqrt {1+\frac {b^2}{c^2}} c \left (-1+\sin \left (d+e x+\arctan \left (\frac {b}{c}\right )\right )\right )}{a+\sqrt {1+\frac {b^2}{c^2}} c}} \sqrt {\frac {\sqrt {1+\frac {b^2}{c^2}} c \left (1+\sin \left (d+e x+\arctan \left (\frac {b}{c}\right )\right )\right )}{-a+\sqrt {1+\frac {b^2}{c^2}} c}} \sqrt {a+\sqrt {1+\frac {b^2}{c^2}} c \sin \left (d+e x+\arctan \left (\frac {b}{c}\right )\right )}}{\sqrt {1+\frac {b^2}{c^2}} c e} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(294\) vs. \(2(137)=274\).
Time = 1.35 (sec) , antiderivative size = 295, normalized size of antiderivative = 2.73
method | result | size |
default | \(\frac {2 \left (a +\sqrt {b^{2}+c^{2}}\right ) \sqrt {\frac {\sqrt {b^{2}+c^{2}}\, \sin \left (e x +d -\arctan \left (-b , c\right )\right )+a}{a +\sqrt {b^{2}+c^{2}}}}\, \sqrt {\frac {\left (\sin \left (e x +d -\arctan \left (-b , c\right )\right )+1\right ) \sqrt {b^{2}+c^{2}}}{-a +\sqrt {b^{2}+c^{2}}}}\, \sqrt {-\frac {\left (\sin \left (e x +d -\arctan \left (-b , c\right )\right )-1\right ) \sqrt {b^{2}+c^{2}}}{a +\sqrt {b^{2}+c^{2}}}}\, \operatorname {EllipticF}\left (\sqrt {\frac {\sqrt {b^{2}+c^{2}}\, \sin \left (e x +d -\arctan \left (-b , c\right )\right )+a}{a +\sqrt {b^{2}+c^{2}}}}, \sqrt {-\frac {a +\sqrt {b^{2}+c^{2}}}{-a +\sqrt {b^{2}+c^{2}}}}\right )}{\sqrt {b^{2}+c^{2}}\, \cos \left (e x +d -\arctan \left (-b , c\right )\right ) \sqrt {\frac {b^{2} \sin \left (e x +d -\arctan \left (-b , c\right )\right )+c^{2} \sin \left (e x +d -\arctan \left (-b , c\right )\right )+a \sqrt {b^{2}+c^{2}}}{\sqrt {b^{2}+c^{2}}}}\, e}\) | \(295\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.11 (sec) , antiderivative size = 506, normalized size of antiderivative = 4.69 \[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\frac {\sqrt {2} \sqrt {b + i \, c} {\left (i \, b + c\right )} {\rm weierstrassPInverse}\left (\frac {4 \, {\left (4 \, a^{2} b^{2} - 3 \, b^{4} - 4 \, a^{2} c^{2} + 6 i \, b c^{3} + 3 \, c^{4} - 2 i \, {\left (4 \, a^{2} b - 3 \, b^{3}\right )} c\right )}}{3 \, {\left (b^{4} + 2 \, b^{2} c^{2} + c^{4}\right )}}, -\frac {8 \, {\left (8 \, a^{3} b^{3} - 9 \, a b^{5} + 27 \, a b c^{4} - 9 i \, a c^{5} + 2 i \, {\left (4 \, a^{3} + 9 \, a b^{2}\right )} c^{3} - 6 \, {\left (4 \, a^{3} b - 3 \, a b^{3}\right )} c^{2} - 3 i \, {\left (8 \, a^{3} b^{2} - 9 \, a b^{4}\right )} c\right )}}{27 \, {\left (b^{6} + 3 \, b^{4} c^{2} + 3 \, b^{2} c^{4} + c^{6}\right )}}, \frac {2 \, a b - 2 i \, a c + 3 \, {\left (b^{2} + c^{2}\right )} \cos \left (e x + d\right ) - 3 \, {\left (i \, b^{2} + i \, c^{2}\right )} \sin \left (e x + d\right )}{3 \, {\left (b^{2} + c^{2}\right )}}\right ) + \sqrt {2} \sqrt {b - i \, c} {\left (-i \, b + c\right )} {\rm weierstrassPInverse}\left (\frac {4 \, {\left (4 \, a^{2} b^{2} - 3 \, b^{4} - 4 \, a^{2} c^{2} - 6 i \, b c^{3} + 3 \, c^{4} + 2 i \, {\left (4 \, a^{2} b - 3 \, b^{3}\right )} c\right )}}{3 \, {\left (b^{4} + 2 \, b^{2} c^{2} + c^{4}\right )}}, -\frac {8 \, {\left (8 \, a^{3} b^{3} - 9 \, a b^{5} + 27 \, a b c^{4} + 9 i \, a c^{5} - 2 i \, {\left (4 \, a^{3} + 9 \, a b^{2}\right )} c^{3} - 6 \, {\left (4 \, a^{3} b - 3 \, a b^{3}\right )} c^{2} + 3 i \, {\left (8 \, a^{3} b^{2} - 9 \, a b^{4}\right )} c\right )}}{27 \, {\left (b^{6} + 3 \, b^{4} c^{2} + 3 \, b^{2} c^{4} + c^{6}\right )}}, \frac {2 \, a b + 2 i \, a c + 3 \, {\left (b^{2} + c^{2}\right )} \cos \left (e x + d\right ) - 3 \, {\left (-i \, b^{2} - i \, c^{2}\right )} \sin \left (e x + d\right )}{3 \, {\left (b^{2} + c^{2}\right )}}\right )}{{\left (b^{2} + c^{2}\right )} e} \]
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\[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\int \frac {1}{\sqrt {a + b \cos {\left (d + e x \right )} + c \sin {\left (d + e x \right )}}}\, dx \]
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\[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\int { \frac {1}{\sqrt {b \cos \left (e x + d\right ) + c \sin \left (e x + d\right ) + a}} \,d x } \]
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\[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\int { \frac {1}{\sqrt {b \cos \left (e x + d\right ) + c \sin \left (e x + d\right ) + a}} \,d x } \]
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Timed out. \[ \int \frac {1}{\sqrt {a+b \cos (d+e x)+c \sin (d+e x)}} \, dx=\int \frac {1}{\sqrt {a+b\,\cos \left (d+e\,x\right )+c\,\sin \left (d+e\,x\right )}} \,d x \]
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