Question

How do you solve `2sin x cos x-sin x=0`?

Answer 1

In [ 0, 2`pi` ], the solutions are 0, `pi`/3, `pi`, 5`pi`/3 and 2`pi`.

Explanation:

Factorizing, sin x = 0 and/or cos x = 1/2.
0, `pi` and 2`pi` are solutions for sin x =0..
`pi`/3 and 5`pi`/3 are for cos x = 1/2..