The sum of all the solution of the equation `costhetacos(pi/3+theta)cos(pi/3-theta)=1/4theta in [0,6pi]` (A) `15pi` (B) `30pi` (C) `(100pi)/3` (D) none of these

The sum of all the solution of the equation cos theta cos((pi)/(3)+theta)cos((pi)/(3)-theta)=(1)/(4)theta in[0,6 pi] (A) 15 pi(B)30 pi(C)(100 pi)/(3) (D) none of these

The sum of all the solution is of the equation cos theta cos ((pi)/3+theta)cos ((pi)/3-theta)=1/4, theta in [0,6pi ]

Prove that: 4\ costhetacos\ (pi/3+theta)cos(pi/3-theta)=cos3theta

Find the sum of all the solution of the equation cos theta-sin3 theta=cos2 theta in[0,2 pi]

Prove that cos theta + cos[(2pi)/3 + theta] + cos [(4pi)/(3) + theta] = 0 .

The sum of all the solutions of cot theta=sin2 theta(theta!=n pi,n integer) 0<=theta<=pi, is (a) (3 pi)/(2) (b) pi (c) 3(pi)/(4) (d) 2 pi

The sum of all the solution in [0,4pi] of the equation tanx+cotx+1=cos(x+pi/4)i s (a) 3pi (b) pi/2 (c) (7pi)/2 (d) 4pi

The sum of all the solution in [0,4pi] of the equation tanx+cotx+1=cos(x+pi/4)i s (a) 3pi (b) pi/2 (c) (7pi)/2 (d) 4pi