Q. 10

# Evaluate:</

Answer :

Let Here, f(x) = |x cos πx|  Let    I = I1 + I2 + I3 + I4 …(i)

Firstly, we integrate I1, we get        [sin (-x) = - sin x and cos (-x) = cos x] [cos π = -1 and sin π = 0] Now,        [sin (-x) = - sin x and cos (-x) = cos x] [cos π/2 = 0 ] Now,                [cos π = -1 and sin π = 0]  Now, putting the value of I1, I2, I3 and I4 in eq. (i), we get    Rate this question :

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