Home › Bihar Board Class 12 (Commerce) › Mathematics › Integrals › Evaluate: integral of dx / sqrt(4 - x^2).
Evaluate: integral of dx / sqrt(4 - x^2).
Asin^-1 (x/2)
B(1/2) sin^-1 x
C(1/2) cos^-1 x
D2 sin^-1 (x/2)
Answer & Solution
Correct answer: A. sin^-1 (x/2)
Using 1/sqrt(a^2 - x^2) with a = 2 gives sin^-1 (x/a) = sin^-1 (x/2).
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