# Trig Identities - Proof

• Nov 12th 2009, 05:44 PM
l flipboi l
Trig Identities - Proof

2+(sin^2x/cos^2x)?

I'm not good with fractions.
• Nov 12th 2009, 05:56 PM
Gusbob
The title says Trig Identities - Proof. What are you trying to prove?
• Nov 12th 2009, 05:57 PM
skeeter
Quote:

Originally Posted by l flipboi l

2+(sin^2x/cos^2x)?

I'm not good with fractions.

why use fractions at all ?

$2 + \frac{\sin^2{x}}{\cos^2{x}} = 2 + \tan^2{x} = 1 + \sec^2{x}$
• Nov 12th 2009, 05:58 PM
l flipboi l
the original equation is ((2+ tan^2x)/(sec^2x)) -1
• Nov 12th 2009, 06:05 PM
skeeter
Quote:

Originally Posted by l flipboi l
the original equation is ((2+ tan^2x)/(sec^2x)) -1

that is not an equation ... what is it equal to ?

in future, please post the entire problem from the start ... as it is, I have no idea what you are trying to do.
• Nov 12th 2009, 06:08 PM
bigwave