`sin^(-1)(sin((2pi)/3))`

sin^(-1)sin((3pi)/5)

Evaluate: sin^(-1)(sin((3pi)/5))

Let alpha = tan^-1 (1/2)+tan^-1(1/3) , beta=cos^-1(2/3)+cos^-1(sqrt5/3) , gamma=sin^-1(sin((2pi)/3))+1/2cos^-1(cos((2pi)/3)) then cosalpha+cosbeta+cosgamma is equal to (A) (sqrt(2)-1)/2 (B) (sqrt(2)+1)/2 (C) (sqrt(2)+sqrt(3))/2 (D) ((sqrt(3)-sqrt(2))/2)

The value of sin^(-1)(sin((3pi)/(5)))

The value of sin^(-1)(sin'(3pi)/(5)) is "….."

The value of sin^(-1)(sin'(3pi)/(5)) is "….."

sin^(-1)(sin (3 pi)/(5))

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

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

(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)