`sin^-1 (sin ((7pi)/6))=` (A) `(7pi)/6` (B) `pi/6` (C) `-pi/6` (D) none of these

sin^(-1)(sin((7pi)/6)) is

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

(cos^(-1)(sin((7 pi)/6))

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

tan^(-1)(tan((7pi)/6))

2tan^(-1)(tan((7pi)/6))

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

If the product of the roots of the equatiin 2x^2+ax+4sina=0 is 1, then the roots will be imaginary if (A) aepsilon R (B) aepsilon {(-7pi)/6, pi/6} (C) aepsilon {pi/6, (5pi)/6} (D) none of these

The value of sin^(-1)(-3/2)+cos^(-1)(cos\ (7pi)/6) is a. (5pi)/6 b. pi/2 c. (3pi)/2 d. none of these