Find all values of `theta in [0,2pi]` for which `costheta=1/2`

Find all values of theta in[0,2 pi] for which cos theta=(1)/(2)

find all values of theta varepsilon[0,2 pi] for which 1)sin theta+cos theta=02)cos^(2)theta=1+sin theta

Find all value of theta, between 0& pi, which satisfy the equation; cos theta*cos2 theta*cos3 theta=(1)/(4)

Find all value of theta , between 0 & pi , which satisfy the equation; cos theta * cos 2 theta * cos 3theta = 1/4 .

Find all the values of theta in (-(pi)/(2),(pi)/(2)) which satisfy the equation (1-tan theta)(1+sin2 theta)=(1+tan theta) is

Find the general values of theta which satisfy 2costheta +1=0 and 2sin theta - sqrt(3)=0

Find the real values of theta for which the complex number (1+i costheta)/(1-2i costheta) is purely real.

The number of values of theta in [ 0, 2pi] satisfying the equation 2sin^2theta=4 + 3 costheta are

Writhe the number of values of theta\ in\ [0,2pi] thast satisfy the equation sin^2theta-costheta=1/4dot

The sum of all values of theta in (0 , pi) satisfying sin^(2) 2 theta + cos^(4) 2 theta = 1 is: