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The integrand cos x/(1 + sin x) is integrated from 0 to π/2. What is the value?
A1
Bln 2
C0
Dπ/2
Answer & Solution
Correct answer: B. ln 2
Putting u = 1 + sin x changes the limits to 1 and 2, giving ln 2 − ln 1 = ln 2.
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