6/ Find the real value of θ for which 1+cos θ l-2i cos θ is purely real.

Find the value of θ in tan θ=sin θ

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

Let S be the sum of all values of θ which satisfy the conditions 2 cos 2 θ + 3 sin θ = 0 and − 2 π ≤ θ ≤ 2 π .Then S =

Find the value of θ if cos theta=sqrt(3)(1-sin theta)

For what values of theta ,|sin θ| = |cos θ| is possible?

"If 2 | α | + 3 | β | = 6 ,then find the minimum value of α 2 + β 2 − 12 α cos θ − 12 β sin θ + 36 ,where θ ∈ R

Find the value of θ of the following if cos theta-sqrt(3)sin theta=1

Find the general solution of: Cos^2θ - Sinθ - 1/4 = 0

The set of values of θ such that tan 2 θ = 1

Find the general solution of sec4θ−sec2θ=2.