alleryStart learning →The integral of cos^2 x taken over the quarter period [0, pi/2] is
A1
Bpi/4
Cpi
Dpi/2
Answer & Solution
Correct answer: B. pi/4
Using cos^2 x = (1 + cos 2x)/2, the integral is (1/2)(pi/2) + 0 = pi/4.
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