Question

Find the sum of sin2x and sinx

Answer 1

I don't understand the question.
Don't you just add them together since that's what "sum" means?

Answer 2

its trig identities

Answer 3

Do you want it only in terms of sin(x)?

Here's a list of identities.
http://tutorial.math.lamar.edu/pdf/Trig_Cheat_Sheet.pdf

Answer 4

The best you can do is simplify the expression:\[
\sin2x+\sin x\\
2\sin x\cos x+\sin x\\
\sin x(2\cos x+1)
\]

Answer 5

yea in terms of sinx