[" If "sin x+cos y=P" ,"cos n+sin y=q" the "],[sin(x-y)=]

sin x-cos y = p, cos x + sin y = q, thentan (xy) / (2) =

I : If cos x + cos y=1/3 , sin x+sin y=1//4 " then " cos (x+y)=7//25 II : If cos x + cos y=1//3 , sin x + sin y=1//4 " then " sin(x+y)=24//25

If cos x+ cos y = 1//3 , sin x + sin y=1//4 " then " cos (x+y)=

if x and y are acute angles such that cos x+cos y=(3)/(2) and sin x+sin y=(3)/(4) then sin(x+y)=

If cos x-cos y=0=sin x+sin y then sin(2020x)+sin(2020y) is equal to

The value of (sin x cos y + cos x sin y)^2+(cos x cos y -sin x sin y)^2 is equal to