[" If "sin^(4)x+cos^(4)y+2=4sin x cos y" and "],[0<=x,y<=(pi)/(2)" ,then "sin x+cos y" is "],[" equal to "]

If sin^4x + cos^4y + 2 = 4 sin x.cos y and 0 le x, y le pi/2 then sin x + cos y is equal to

If sin^(4)x+cos^(4)y+2=4sin x cos y then the value of sin x+cos y is equal to

If y=(sin^(4)x-cos^(4)x+sin^(2) x cos^(2)x)/(sin^(4) x+ cos^(4)x + sin^(2) x cos^(2)x), x in (0, pi/2) , then

If y= ( sin^(4) x - cos^(4) x + sin^(2) x cos^(2) x )/( sin^(4) x + cos^(4) x + sin^(2) x cos^(2) x) , x in ( 0, (pi)/(2) ) , then

If y=(sin^(4)x-cos^(4)x+sin^(2) x cos^(2)x)/(sin^(4) x+ cos^(4)x + sin^(2) x cos^(2)x), x in (0, pi/2) , then

If y=(sin^(4)x-cos^(4)x+sin^(2) x cos^(2)x)/(sin^(4) x+ cos^(4)x + sin^(2) x cos^(2)x), x in (0, pi/2) , then

If sin x ( cos ""(x)/( 4) - 2 sin x) + ( 1 + sin "" (x)/( 4) - 2 cos x) cos x = 0 then x =

If y=1+4sin^2 x cos^(2) x , then

If y = sin^(4)x + cos^(4)x then (y_(4)(0))/8 is equal to