Question

siny=xsin(a+y) then prove dy/dx= sina/(1-2xcosa+a^2)

Answer 1

23 is the right answer

Answer 2

Given siny=xsin(a+y)

siny = x sin (a) cos y + x sin y cos a

sin y (1-x cos a) = x sin a cos y

tan y = x sin a / 1 - x cos a

Differentiating the equation with respect to x,