Question

NEED HELP AM NEW TO THIS. show that each of the following statements is an identity by transforming the left side of each one into the right side. cos θ tan θ = sin θ

Answer 1

Ah! Are you familiar with the term known as 'isolation'?
You must isolate \(\cos\theta, \sin\theta , \tan \theta\) to get different identities.

Answer 2

You need to show that they are the same thing. \[\cos \theta \tan \theta = \sin \theta\]
\[\cos \theta * \sin \theta/\cos \theta = \sin \theta\]
the cos theta cancels and then you're left with:
\[\sin \theta = \sin \theta\]

Answer 3

My recommendation for problems like this is to always, ALWAYS put everything in terms of sine and cosine.