If `cos3x+sin(2x-(7pi)/6)=-2` , then `x` is equal to `(k in Z)` `pi/3(6k+1)` (b) `pi/3(6k-1)` `pi/3(2k+1)` (d) none of these

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If cos 3x+sin (2x-(7pi)/6)=-2 , then x is equal to (k in Z)

If cos3x+sin(2x-(7 pi)/(6))=-2, then x is equal to (k in Z)(pi)/(3)(6k+1)( b) (pi)/(3)(6k-1)(pi)/(3)(2k+1)( d ) none of these

If cos 3 x + sin (2 x - (7 pi)/(6)) = - 2 then x is equal to (k in Z)

If cos3x+sin(2x-(7pi)/6)=-2 , then show that x is of the form π / 3(6m+1) .

If cos3x+sin(2x-(7pi)/6)=-2 , then show that x is of the form π / 3(6n+1) .

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