If `x in [0. (pi)/(2)], y in [0, (pi)/(2)] and sin x + cos y =2, ` then the value of `x+y ` is equal to

If x, y in [0, 2pi] and sin x + sin y=2 , then the value of x+y is

If x, y in [0, 2pi] and sin x + sin y=2 , then the value of x+y is

If x, y in [0, 2pi] and sin x + sin y=2 , then the value of x+y is

If x sin y+y cos x=pi , then the value of y''(0) is -

If x cos y+y cos x=pi then the value of y'(0) is equal to pi(b)-pi(c)1(d)0

If x,y in[0,2 pi] and sin x+sin y=2, then the value of x+y is pi(b)(pi)/(2)(c)3 pi(d) none of these

If y = sin x, then at x = pi/2 , y_2 is equal to

If y = cos x, then at x = pi/2 , y_2 is equal to

If (sin x)/(sin y)=(1)/(2), (cos x)/(cos y)=(3)/(2) , where x,y in (0,(pi)/(4)) , then the value of tan (x + y) is equal to