Question

verify identity in terms of sine and cosines

Answer 1

\[\frac{ 1 + \cos^2 3 \theta }{ \sin^2 3 \theta } = 2 \csc^2 3 \theta \]

Answer 2

you need to prove it ?

Answer 3

yes prove that one side equal the other by simplyfying all the right side in terms of sines and cosines and the same for the left side

Answer 4

simplifying **

Answer 5

I don't think it's an identity, try theta = pi/2,

left side = 1, right side = 2. no good. :(

Answer 6

ya that was what i was thinking

Answer 7

yeah I graphed it with geogebra and the graphs don't match up...

Answer 8

infact :