Question 1170388
.
<pre>

The given equation is equivalent to


    2sin(x)*cos(x) - cos(x) = 0,   or

    
    (2sin(x)-1)*cos(x) = 0

    (sin(x) - 1/2)*cos(x) = 0.


The possible solutions are those value of x, that make at least one of the two factors equal to zero


<U>ANSWER</U>.  Option b), ONLY.
</pre>

Solved, answered, explained and completed.