(Choose 1 answer)
(See picture)
A. (iii)
B. (iv)
C. None of the other choices is correct
D. (ii)
E. (i)
Find differential of
y = x² cos2x
(i) dy = 2x(cos2x - x sin 2x)dx
(ii) dy = x(cos 2x - 2x sin 2x)dx
(iii) dy = 2x(cos2x + xsin 2x)dx
(iv) dy = x(2cos2x - x sin 2x)dx
Exll
12
