If `sintheta= - 1/2` and `tan theta = 1/sqrt(3)` then the most general values of `theta` equal to (A) `2npi+pi/6` (B) `2npi=(5pi)/6` (C) `2npi+(7pi)/6` (D) none of these

If sintheta=1/2a n dcostheta=-(sqrt(3))/2, then the general value of theta is (n in Z)dot (a) 2npi+(5pi)/6 (b) 2npi+pi/6 (c)2npi+(7pi)/6 (d) 2npi+pi/4

General solution of the equatin 1+sin^4 2x=cos^2 6x is (A) (npi)/3 (B) (npi)/2 (C) npi (D) none of these

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

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

If (cos e c^2theta-4)x^2+(cottheta+sqrt(3))x+cos^2(3pi)/2=0 holds true for all real x , then the most general values of theta can be given by n in Z) 2npi+(11pi)/6 (b) 2npi+(5pi)/6 2npi+-(7pi)/6 (d) npi+-(11pi)/6

If (cos e c^2theta-4)x^2+(cottheta+sqrt(3))x+cos^2(3pi)/2=0 holds true for all real x , then the most general values of theta can be given by n in Z) 2npi+(11pi)/6 (b) 2npi+(5pi)/6 2npi+-(7pi)/6 (d) npi+-(11pi)/6

The most general value for which tantheta=-1 and costheta=1/(sqrt(2)) is ( n in Z) (A) npi+(7pi)/4 (B) npi+(-1)^n(7pi)/4 (C) 2npi+(7pi)/4 (D) none of these

A general solution of tan^2theta+cos2theta=1 is (n in Z) npi=pi/4 (b) 2npi+pi/4 npi+pi/4 (d) npi

If sin^3theta+sinthetacos^2theta=1,t h e ntheta is equal to (n in Z) (a) 2npi (b) 2npi+pi/2 (c) 2npi-pi/2 (d) npi

If 3tan(theta-15^0)=tan(theta+15^0), then theta is equal to n in Z) n pi+pi/4 (b) npi+pi/8 npi+pi/3 (d) none of these