Answers:
(i)
Using derivative formula,
(ii)
Using derivative formula,
Multiplying numerator and denominator by 2,
Find the derivatives of the following functions at the indicated points: (i) 2 cos x at x = π/2 (ii) sin 2xat x = π/2
Find the derivatives of the following functions at the indicated points: (i) 2 cos x at x = π/2 (ii) sin 2xat x = π/2