" 1) if "sin^(-1)x+sin^(-1)y=(pi)/(2)sin cos^(-1)x+cos^(-1)y=?

What are the values of (x, y) satisfying the simultaneous equation sin^(-1)x + sin^(-1)y=(2pi)/(3)and cos^(-1)x - cos^(-1)y=(pi)/(3) ?

If sin^(-1)x + sin^(-1)y =(2pi)/3 , then: cos^(-1)x +cos^(-1)y=

If sin^(-1)x+sin^(-1)y=(pi)/(2), "then" cos^(-1)x+cos^(-1)y is equal to

If sin^(-1)x +sin^(-1)y =pi then cos^(-1)x +cos^(-1)y is :

If sin^(-1)x+sin^(-1)y=(pi)/(3) and cos^(-1)x+cos^(-1)y=(pi)/(6), find the values of x and y.

If sin^(-1)x+sin^(-1)y=(2 pi)/(3) and cos^(-1)x-cos^(-1)y=-(pi)/(3) then the number of values of (x,y) is

What are the values of (x,y) satisfying the simultaneous equations sin^(-1)x+sin^(-1)y=(2pi)/(3) and cos^(-1)x-cos^(-1)y=(pi)/(3) ?

If sin^(-1)x+cos^(-1)y=(2pi)/(5),"then "cos^(-1)x+sin^(-1)y =