Question

sin(2x)=sin(x)

Answer 1

Solve the following equation, giving the exact solutions which lie in [0, 2π). (Enter your answers as a comma-separated list.)

Answer 2

http://www.freemathhelp.com/images/doubleangles.png <--- use the double-angle identity for sine, move everything to the left-side, get common factor, just like the previous one

Answer 3

i dont know how

Answer 4

well... can you expand the sin(2x) based on the double-angle identity as shown at http://www.freemathhelp.com/images/doubleangles.png ?

Answer 5

i think so

Answer 6

.... what would it look like?

Answer 7

i dont know

Answer 8

well.... anyhow, that's how'd do it

Answer 9

can you show me how to do it