Question

Shouldn't the answer be a ?

In the book, the answer is given as d

Answer 1

(d)

Explanation:

`(ln ( sin x^2 ))^' = 1/( sin x^2) ( cos x^2) * 2x = 2x \ cot x^2`

`(2x \ cot x^2 )_([x = sqrtpi/2])= sqrtpi qquad qquad = (d)`