Q9 of 271 Page 310

The value of the integral is

Given:

let


Now, let x = sin θ ⇒ dx = cos θ d θ


when, and when x = 1, θ = π/2









Now, let cot θ = t ⇒ - cosec2 θ d θ


when,









= 6


Correct option is: (A)

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