Find the exact value of the expression if θ = 30°. Do not use a calculator.

f(θ) = cos θ Find 9 f(θ).

answer choices are uploaded please work this out so I can understand how you got the answer! Thank you!

Find the exact value of the expression if θ 30 Do not use a calculator fθ cos θ Find 9 fθ answer choices are uploaded please work this out so I can understand h class=