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The value of cosxsinx+cosxdx is

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a
x22+log⁡|sin⁡x+cos⁡x|+C
b
12(x+log⁡|sin⁡x+cos⁡x|)+C
c
2log⁡|sin⁡x+cos⁡x|+x+C
d
none of these

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detailed solution

Correct option is B

∫cos⁡xsin⁡x+cos⁡xdx=12∫cos⁡x+sin⁡x+cos⁡x−sin⁡xsin⁡x+cos⁡xdx=12∫1+cos⁡x−sin⁡xsin⁡x+cos⁡xdx=(1/2)(x+log⁡|sin⁡x+cos⁡x|)+C


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