Question

Help.

Answer 1

What values for \[\theta(0\le \theta \le2\pi)\]

Answer 2

satisfy the equation?

Answer 3

\[2\sin \theta \cos \theta + \cos \theta =0\]

Answer 4

Factorize : \(\cos\theta (\text{stuff}) = 0\).
a product of terms is equal to zero if one of the terms is zero.
This means, obtain the solutions of \(\cos \theta = 0\) and the solution of \(\text{stuff}=0\).
The solutions fr the initial equation are then ALL the solutions that you have found with the two equations.