Question

Use basic identities to simplify the expression.

cos θ - cos θ sin2θ

Answer 1

thats sin^2theta

Answer 2

ok take cos θ out of the bracket..
so you'll get cos θ (1- sin^2 θ)
also you should know cos^2 θ + sin^2 θ = 1 ..
Now you should be able to smplify it.

Answer 3

Thanks...ok gimme a sec.

Answer 4

cos(cos^2theta)

Answer 5

x i mean

Answer 6

no theta XD sorry!

Answer 7

cos^3 theta

Answer 8

yup

Answer 9

Thanks!

Answer 10

You're welcome.