Posted by **anon** on Saturday, March 12, 2011 at 5:30pm.

Which of the following is a step in evaluating

(integer sign) cos^2 5x dx

A.(integer sign) 1 + cos 10x / 2 dx

B.(integer sign) 1 - cos 10x / 2 dx

C.(integer sign) 1 + cos 10x / 20 dx

D.(integer sign) 1 - cos 10x / 20 dx

A <<

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