Question

Given tan theta=4/3 and sin(-4/5), find cos theta

Answer 1

answer choices

Answer 2

use the identity
\(\tan \theta = \dfrac{\sin \theta }{\cos \theta} \\ \implies \cos \theta = \dfrac{\sin \theta}{\tan \theta}\)

Answer 3

I got -3/5. Is that right?

Answer 4

absolutely! :)

Answer 5

thank you!