sin^(-1)x+sin^(-1)y=(2 pi)/(3)tan(sin alpha cos^(-1)x+cos^(-1)y

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

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

Solve : sin ^(-1) x+sin ^(-1) ""y=(2pi)/(3) and cos ^(-1) x- cos ^(-1)y =(pi)/(3).

(i) Evaluate : sec (cos^(-1).(1)/(2)) (ii) slove the equations sin^(-1) x + sin^(-1) y = (2pi)/(3) and cos^(-1) x - cos ^(-1) y = (pi)/(3)

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

sin^(-1)x-sin ^(-1)y=(pi)/(3) and cos^(-1) x+ cos ^(-1) y=(2pi)/(3)