Question

What are all the exact solutions of 2 sin X-sinx-

for 0 ? Give your answer in radians.
0.65 and 26

Answer 1

`x=2\pi n,\:x=\pi +2\pi n`

Explanation:

`2\sin \left(x\right)-\sin \left(x\right)=0`

`2\sin \left(x\right)-\sin \left(x\right)=\sin \left(x\right)`

`\sin \left(x\right)=0`

`x=0+2\pi n,\:x=\pi +2\pi n`

`x=0+2\pi n`

`x=2\pi n`

`x=2\pi n,\:x=\pi +2\pi n`

Answer 2

D

Explanation: