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Old November 12th, 2009, 05:44 PM
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Default Trig Identities - Proof

How would I add this?

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

I'm not good with fractions.
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Old November 12th, 2009, 05:56 PM
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The title says Trig Identities - Proof. What are you trying to prove?
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Old November 12th, 2009, 05:57 PM
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Originally Posted by l flipboi l View Post
How would I add this?

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}
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Old November 12th, 2009, 05:58 PM
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the original equation is ((2+ tan^2x)/(sec^2x)) -1
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Old November 12th, 2009, 06:05 PM
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Originally Posted by l flipboi l View Post
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.
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Old November 12th, 2009, 06:08 PM
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where is the "=" sign in this...
this is just an expression
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