Question

If x+y=π/2 and sin x = 1/3,then sin y is

Answer 1

Answer:

x+y,=π/2

taking sin of both sides we get

sin(x+y)=sin π/2

sin x cos y + cos x sin y =1

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

putting the value of sin x

sin y=1-cos y /3cos x