Integrand size = 18, antiderivative size = 328 \[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=-\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {32768 b^{15/2} \sqrt {\pi } \cos (2 a) \operatorname {FresnelC}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right )}{675675}-\frac {32768 b^{15/2} \sqrt {\pi } \operatorname {FresnelS}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right ) \sin (2 a)}{675675}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}} \]
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Time = 0.41 (sec) , antiderivative size = 328, normalized size of antiderivative = 1.00, number of steps used = 16, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {3497, 3395, 30, 3393, 3387, 3386, 3432, 3385, 3433} \[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=\frac {32768 \sqrt {\pi } b^{15/2} \cos (2 a) \operatorname {FresnelC}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right )}{675675}-\frac {32768 \sqrt {\pi } b^{15/2} \sin (2 a) \operatorname {FresnelS}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right )}{675675}-\frac {32768 b^7 \sin \left (a+b \sqrt [3]{x}\right ) \cos \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {2048 b^5 \sin \left (a+b \sqrt [3]{x}\right ) \cos \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}-\frac {128 b^3 \sin \left (a+b \sqrt [3]{x}\right ) \cos \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {8 b \sin \left (a+b \sqrt [3]{x}\right ) \cos \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {4096 b^6}{675675 \sqrt {x}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {16 b^2}{715 x^{11/6}} \]
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Rule 30
Rule 3385
Rule 3386
Rule 3387
Rule 3393
Rule 3395
Rule 3432
Rule 3433
Rule 3497
Rubi steps \begin{align*} \text {integral}& = 3 \text {Subst}\left (\int \frac {\cos ^2(a+b x)}{x^{17/2}} \, dx,x,\sqrt [3]{x}\right ) \\ & = -\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}+\frac {1}{65} \left (8 b^2\right ) \text {Subst}\left (\int \frac {1}{x^{13/2}} \, dx,x,\sqrt [3]{x}\right )-\frac {1}{65} \left (16 b^2\right ) \text {Subst}\left (\int \frac {\cos ^2(a+b x)}{x^{13/2}} \, dx,x,\sqrt [3]{x}\right ) \\ & = -\frac {16 b^2}{715 x^{11/6}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}-\frac {\left (128 b^4\right ) \text {Subst}\left (\int \frac {1}{x^{9/2}} \, dx,x,\sqrt [3]{x}\right )}{6435}+\frac {\left (256 b^4\right ) \text {Subst}\left (\int \frac {\cos ^2(a+b x)}{x^{9/2}} \, dx,x,\sqrt [3]{x}\right )}{6435} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}+\frac {\left (2048 b^6\right ) \text {Subst}\left (\int \frac {1}{x^{5/2}} \, dx,x,\sqrt [3]{x}\right )}{225225}-\frac {\left (4096 b^6\right ) \text {Subst}\left (\int \frac {\cos ^2(a+b x)}{x^{5/2}} \, dx,x,\sqrt [3]{x}\right )}{225225} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}}-\frac {\left (32768 b^8\right ) \text {Subst}\left (\int \frac {1}{\sqrt {x}} \, dx,x,\sqrt [3]{x}\right )}{675675}+\frac {\left (65536 b^8\right ) \text {Subst}\left (\int \frac {\cos ^2(a+b x)}{\sqrt {x}} \, dx,x,\sqrt [3]{x}\right )}{675675} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {65536 b^8 \sqrt [6]{x}}{675675}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}}+\frac {\left (65536 b^8\right ) \text {Subst}\left (\int \left (\frac {1}{2 \sqrt {x}}+\frac {\cos (2 a+2 b x)}{2 \sqrt {x}}\right ) \, dx,x,\sqrt [3]{x}\right )}{675675} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}}+\frac {\left (32768 b^8\right ) \text {Subst}\left (\int \frac {\cos (2 a+2 b x)}{\sqrt {x}} \, dx,x,\sqrt [3]{x}\right )}{675675} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}}+\frac {\left (32768 b^8 \cos (2 a)\right ) \text {Subst}\left (\int \frac {\cos (2 b x)}{\sqrt {x}} \, dx,x,\sqrt [3]{x}\right )}{675675}-\frac {\left (32768 b^8 \sin (2 a)\right ) \text {Subst}\left (\int \frac {\sin (2 b x)}{\sqrt {x}} \, dx,x,\sqrt [3]{x}\right )}{675675} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}}+\frac {\left (65536 b^8 \cos (2 a)\right ) \text {Subst}\left (\int \cos \left (2 b x^2\right ) \, dx,x,\sqrt [6]{x}\right )}{675675}-\frac {\left (65536 b^8 \sin (2 a)\right ) \text {Subst}\left (\int \sin \left (2 b x^2\right ) \, dx,x,\sqrt [6]{x}\right )}{675675} \\ & = -\frac {16 b^2}{715 x^{11/6}}+\frac {256 b^4}{45045 x^{7/6}}-\frac {4096 b^6}{675675 \sqrt {x}}-\frac {2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{5 x^{5/2}}+\frac {32 b^2 \cos ^2\left (a+b \sqrt [3]{x}\right )}{715 x^{11/6}}-\frac {512 b^4 \cos ^2\left (a+b \sqrt [3]{x}\right )}{45045 x^{7/6}}+\frac {8192 b^6 \cos ^2\left (a+b \sqrt [3]{x}\right )}{675675 \sqrt {x}}+\frac {32768 b^{15/2} \sqrt {\pi } \cos (2 a) \operatorname {FresnelC}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right )}{675675}-\frac {32768 b^{15/2} \sqrt {\pi } \operatorname {FresnelS}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right ) \sin (2 a)}{675675}+\frac {8 b \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{65 x^{13/6}}-\frac {128 b^3 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{6435 x^{3/2}}+\frac {2048 b^5 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{225225 x^{5/6}}-\frac {32768 b^7 \cos \left (a+b \sqrt [3]{x}\right ) \sin \left (a+b \sqrt [3]{x}\right )}{675675 \sqrt [6]{x}} \\ \end{align*}
Time = 0.43 (sec) , antiderivative size = 249, normalized size of antiderivative = 0.76 \[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=\frac {-135135-135135 \cos \left (2 \left (a+b \sqrt [3]{x}\right )\right )+15120 b^2 x^{2/3} \cos \left (2 \left (a+b \sqrt [3]{x}\right )\right )-3840 b^4 x^{4/3} \cos \left (2 \left (a+b \sqrt [3]{x}\right )\right )+4096 b^6 x^2 \cos \left (2 \left (a+b \sqrt [3]{x}\right )\right )+32768 b^{15/2} \sqrt {\pi } x^{5/2} \cos (2 a) \operatorname {FresnelC}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right )-32768 b^{15/2} \sqrt {\pi } x^{5/2} \operatorname {FresnelS}\left (\frac {2 \sqrt {b} \sqrt [6]{x}}{\sqrt {\pi }}\right ) \sin (2 a)+41580 b \sqrt [3]{x} \sin \left (2 \left (a+b \sqrt [3]{x}\right )\right )-6720 b^3 x \sin \left (2 \left (a+b \sqrt [3]{x}\right )\right )+3072 b^5 x^{5/3} \sin \left (2 \left (a+b \sqrt [3]{x}\right )\right )-16384 b^7 x^{7/3} \sin \left (2 \left (a+b \sqrt [3]{x}\right )\right )}{675675 x^{5/2}} \]
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Time = 0.58 (sec) , antiderivative size = 207, normalized size of antiderivative = 0.63
method | result | size |
derivativedivides | \(-\frac {1}{5 x^{\frac {5}{2}}}-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{5 x^{\frac {5}{2}}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{13 x^{\frac {13}{6}}}+\frac {4 b \left (-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{11 x^{\frac {11}{6}}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{9 x^{\frac {3}{2}}}+\frac {4 b \left (-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{7 x^{\frac {7}{6}}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{5 x^{\frac {5}{6}}}+\frac {4 b \left (-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{3 \sqrt {x}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{x^{\frac {1}{6}}}+2 \sqrt {b}\, \sqrt {\pi }\, \left (\cos \left (2 a \right ) \operatorname {C}\left (\frac {2 x^{\frac {1}{6}} \sqrt {b}}{\sqrt {\pi }}\right )-\sin \left (2 a \right ) \operatorname {S}\left (\frac {2 x^{\frac {1}{6}} \sqrt {b}}{\sqrt {\pi }}\right )\right )\right )}{3}\right )}{5}\right )}{7}\right )}{9}\right )}{11}\right )}{13}\right )}{5}\) | \(207\) |
default | \(-\frac {1}{5 x^{\frac {5}{2}}}-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{5 x^{\frac {5}{2}}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{13 x^{\frac {13}{6}}}+\frac {4 b \left (-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{11 x^{\frac {11}{6}}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{9 x^{\frac {3}{2}}}+\frac {4 b \left (-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{7 x^{\frac {7}{6}}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{5 x^{\frac {5}{6}}}+\frac {4 b \left (-\frac {\cos \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{3 \sqrt {x}}-\frac {4 b \left (-\frac {\sin \left (2 a +2 b \,x^{\frac {1}{3}}\right )}{x^{\frac {1}{6}}}+2 \sqrt {b}\, \sqrt {\pi }\, \left (\cos \left (2 a \right ) \operatorname {C}\left (\frac {2 x^{\frac {1}{6}} \sqrt {b}}{\sqrt {\pi }}\right )-\sin \left (2 a \right ) \operatorname {S}\left (\frac {2 x^{\frac {1}{6}} \sqrt {b}}{\sqrt {\pi }}\right )\right )\right )}{3}\right )}{5}\right )}{7}\right )}{9}\right )}{11}\right )}{13}\right )}{5}\) | \(207\) |
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none
Time = 0.28 (sec) , antiderivative size = 192, normalized size of antiderivative = 0.59 \[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=\frac {2 \, {\left (16384 \, \pi b^{7} x^{3} \sqrt {\frac {b}{\pi }} \cos \left (2 \, a\right ) \operatorname {C}\left (2 \, x^{\frac {1}{6}} \sqrt {\frac {b}{\pi }}\right ) - 16384 \, \pi b^{7} x^{3} \sqrt {\frac {b}{\pi }} \operatorname {S}\left (2 \, x^{\frac {1}{6}} \sqrt {\frac {b}{\pi }}\right ) \sin \left (2 \, a\right ) - 2048 \, b^{6} x^{\frac {5}{2}} + 1920 \, b^{4} x^{\frac {11}{6}} - 7560 \, b^{2} x^{\frac {7}{6}} - {\left (3840 \, b^{4} x^{\frac {11}{6}} - 15120 \, b^{2} x^{\frac {7}{6}} - {\left (4096 \, b^{6} x^{2} - 135135\right )} \sqrt {x}\right )} \cos \left (b x^{\frac {1}{3}} + a\right )^{2} + 4 \, {\left (768 \, b^{5} x^{\frac {13}{6}} - 1680 \, b^{3} x^{\frac {3}{2}} - {\left (4096 \, b^{7} x^{2} - 10395 \, b\right )} x^{\frac {5}{6}}\right )} \cos \left (b x^{\frac {1}{3}} + a\right ) \sin \left (b x^{\frac {1}{3}} + a\right )\right )}}{675675 \, x^{3}} \]
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\[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=\int \frac {\cos ^{2}{\left (a + b \sqrt [3]{x} \right )}}{x^{\frac {7}{2}}}\, dx \]
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Result contains complex when optimal does not.
Time = 0.45 (sec) , antiderivative size = 90, normalized size of antiderivative = 0.27 \[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=-\frac {240 \, \sqrt {2} {\left ({\left (-\left (i - 1\right ) \, \sqrt {2} \Gamma \left (-\frac {15}{2}, 2 i \, b x^{\frac {1}{3}}\right ) + \left (i + 1\right ) \, \sqrt {2} \Gamma \left (-\frac {15}{2}, -2 i \, b x^{\frac {1}{3}}\right )\right )} \cos \left (2 \, a\right ) + {\left (-\left (i + 1\right ) \, \sqrt {2} \Gamma \left (-\frac {15}{2}, 2 i \, b x^{\frac {1}{3}}\right ) + \left (i - 1\right ) \, \sqrt {2} \Gamma \left (-\frac {15}{2}, -2 i \, b x^{\frac {1}{3}}\right )\right )} \sin \left (2 \, a\right )\right )} \sqrt {b x^{\frac {1}{3}}} b^{7} x^{\frac {7}{3}} + 1}{5 \, x^{\frac {5}{2}}} \]
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\[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=\int { \frac {\cos \left (b x^{\frac {1}{3}} + a\right )^{2}}{x^{\frac {7}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\cos ^2\left (a+b \sqrt [3]{x}\right )}{x^{7/2}} \, dx=\int \frac {{\cos \left (a+b\,x^{1/3}\right )}^2}{x^{7/2}} \,d x \]
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