Integrand size = 36, antiderivative size = 37 \[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\frac {2 B \sqrt {\cos (c+d x)} \operatorname {EllipticF}\left (\frac {1}{2} (c+d x),2\right ) \sqrt {\sec (c+d x)}}{d} \]
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Time = 0.03 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {21, 3856, 2720} \[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\frac {2 B \sqrt {\cos (c+d x)} \sqrt {\sec (c+d x)} \operatorname {EllipticF}\left (\frac {1}{2} (c+d x),2\right )}{d} \]
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Rule 21
Rule 2720
Rule 3856
Rubi steps \begin{align*} \text {integral}& = B \int \sqrt {\sec (c+d x)} \, dx \\ & = \left (B \sqrt {\cos (c+d x)} \sqrt {\sec (c+d x)}\right ) \int \frac {1}{\sqrt {\cos (c+d x)}} \, dx \\ & = \frac {2 B \sqrt {\cos (c+d x)} \operatorname {EllipticF}\left (\frac {1}{2} (c+d x),2\right ) \sqrt {\sec (c+d x)}}{d} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.00 \[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\frac {2 B \sqrt {\cos (c+d x)} \operatorname {EllipticF}\left (\frac {1}{2} (c+d x),2\right ) \sqrt {\sec (c+d x)}}{d} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(133\) vs. \(2(59)=118\).
Time = 2.07 (sec) , antiderivative size = 134, normalized size of antiderivative = 3.62
method | result | size |
default | \(-\frac {2 \sqrt {\left (2 \left (\cos ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-1\right ) \left (\sin ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}\, B \sqrt {\frac {1}{2}-\frac {\cos \left (d x +c \right )}{2}}\, \sqrt {-2 \left (\cos ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+1}\, F\left (\cos \left (\frac {d x}{2}+\frac {c}{2}\right ), \sqrt {2}\right )}{\sqrt {-2 \left (\sin ^{4}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\sin ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )}\, \sin \left (\frac {d x}{2}+\frac {c}{2}\right ) \sqrt {2 \left (\cos ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-1}\, d}\) | \(134\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.10 (sec) , antiderivative size = 53, normalized size of antiderivative = 1.43 \[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\frac {-i \, \sqrt {2} B {\rm weierstrassPInverse}\left (-4, 0, \cos \left (d x + c\right ) + i \, \sin \left (d x + c\right )\right ) + i \, \sqrt {2} B {\rm weierstrassPInverse}\left (-4, 0, \cos \left (d x + c\right ) - i \, \sin \left (d x + c\right )\right )}{d} \]
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\[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=B \int \sqrt {\sec {\left (c + d x \right )}}\, dx \]
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\[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\int { \frac {{\left (B b \cos \left (d x + c\right ) + B a\right )} \sqrt {\sec \left (d x + c\right )}}{b \cos \left (d x + c\right ) + a} \,d x } \]
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\[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\int { \frac {{\left (B b \cos \left (d x + c\right ) + B a\right )} \sqrt {\sec \left (d x + c\right )}}{b \cos \left (d x + c\right ) + a} \,d x } \]
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Timed out. \[ \int \frac {(a B+b B \cos (c+d x)) \sqrt {\sec (c+d x)}}{a+b \cos (c+d x)} \, dx=\int \frac {\sqrt {\frac {1}{\cos \left (c+d\,x\right )}}\,\left (B\,a+B\,b\,\cos \left (c+d\,x\right )\right )}{a+b\,\cos \left (c+d\,x\right )} \,d x \]
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