Question

Prove (sin^2theta) * (csc^2theta) = sin^2theta + cos^2theta

Answer 1

on the left side...what is another way to write csc^2 ?

Answer 2

1/sin^2

Answer 3

correct. Now with that. what is sin^2 * 1/sin^2

Answer 4

it equals one

Answer 5

yes...so that line was changed by reciprocal identities.

no you have pyth theroem
1 = sin^2 theta + cos^2 theta

Answer 6

ok what would be next

Answer 7

that is it...

Answer 8

oh lol ok

Answer 9

No problem...always look at each side and determine which side you can rewrite the easiest. In our case Left side..apply your identity theorems as proof.