Question

find value of sin(8 theta)

Answer 1

\[\sin(8 \theta)\]

Answer 2

so this is a complicated one

Answer 3

use your double angle identities for sin(4x+4x)

Answer 4

Then break everything down from there into either sin(2x+2x) or cos (2x+2x) as appropriate

Answer 5

then use your double angle identities again for sin(2x) or cos (2x)

Answer 6

collect all of your like terms