Question

sin3theta + sin2theta = 1?

Answer 1

u know formula of sin3 theta??

Answer 2

wat is it? I only know the double angle ones

Answer 3

okayyy...so \[\sin3\theta=\sin(2\theta+\theta)\]

Answer 4

this u can expand ??

Answer 5

uhm. general addition formula?

Answer 6

use sin(A+B)
A=2 theta
B=Theta

Answer 7

yeah can u expand it ??

Answer 8

yes

Answer 9

oh ok . then I would just do some algebraic manipulations.. thank you very much!

Answer 10

yeah ..u got it ..

Answer 11

welcome:)