Choose the correct alternative in the following:
If sin y = x cos(a + y), then 
is equal to
sin y = x cos(a + y)
Differentiating w.r.t y we get,
(Using quotient rule)
Using cos(a-b) = cos a.cos b + sin a.sin b
1
Choose the correct alternative in the following:
If sin y = x cos(a + y), then is equal to
sin y = x cos(a + y)
Differentiating w.r.t y we get,
(Using quotient rule)
Using cos(a-b) = cos a.cos b + sin a.sin b