`cot^(-1)(-sqrt3)=`
(a) `-pi/6` (b)`(5pi)/6` (c)`pi/3` (d)`(2pi)/3`

The least positive solution of cot(pi/(3sqrt3) sin2x)=sqrt3 lie (a) sin(0,pi/6) (b) (pi/9,pi/6) (c) (pi/12,pi/9) (d) (pi/3,pi/2)

cos^-1 {-sin((5pi)/6)}= (A) - (5pi)/6 (B) (5pi)/6 (C) (2pi)/3 (D) -(2pi)/3

cos^(-1)((cos(7 pi))/(6)) is equal to ( a ) (7 pi)/(6) (B) (5 pi)/(6) (C) (pi)/(3)(D)(pi)/(6)

sin^(-1)((-1)/2) (a) pi/3 (b) -pi/3 (c) pi/6 (d) -pi/6

sin^(-1)(0) is equal to : (a) 0 (b) pi/6 (c) pi/2 (d) pi/3

The principal value of sin^(-1)(sin((2 pi)/(3))) is (a)-(2 pi)/(3) (b) (2 pi)/(3) (c) (4 pi)/(3) (d) (5 pi)/(3) (e) none of these

sin^-1 (-1/2)+tan^-1 (sqrt(3))= (A) -pi/6 (B) pi/3 (C) pi/6 (D) none of these

The value of sin^(-1)(-(sqrt(3))/(2))backslash is: (A) (-pi)/(3) (B) (-2 pi)/(3)( C) (4 pi)/(3) (D) (5 pi)/(3)

sin^-1 (cos(sin^-1(sqrt(3)/2))= (A) pi/3 (B) pi/6 (C) - pi/6 (D) none of these