Which of the following is a step in evaluating
�ç(integer sign) cos^2 5x dx
A.�ç(integer sign) 1 + cos 10x / 2 dx
B.�ç(integer sign) 1 - cos 10x / 2 dx
C.�ç(integer sign) 1 + cos 10x / 20 dx
D.�ç(integer sign) 1 - cos 10x / 20 dx

A <<

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  1. Correct.

    ∫(1 + cos(10x))/2 dx


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  2. Thank you.

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