Q18 of 354 Page 11

Choose the correct alternative in the following:
If 3 sin(xy) + 4cos (xy) = 5, then

3 sin(xy) + 4cos (xy) = 5

Differentiating w.r.t x we get,

(Using Chain Rule)

Choose the correct alternative in the following:

equals

Choose the correct alternative in the following:

If sin y = x sin (a + y), then is

Choose the correct alternative in the following:

The derivative of cos^–1 (2x² – 1) with respect to cos^–1 x is

Choose the correct alternative in the following:If 3 sin(xy) + 4cos (xy) = 5, then