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cos^(-1)(cos(7pi)/6)is equal to(a) (7pi)...

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

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cos^(-1)(cos((7 pi)/(6))) is equal to

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

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

cos^-1 (cos frac{7pi}{6}) is equal to :

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

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

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