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July 12th, 2011, 09:47 PM   #1
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Trig Identities

Here's another one if you're up for it mark

tan x 1
------ = ---------
sin x - 2tan x cos x - 2
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July 12th, 2011, 09:48 PM   #2
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Re: Trig Identities

darn that didn't work out

(tan x)/(sin x - 2tan x) = 1/(cos x - 2)
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July 12th, 2011, 09:49 PM   #3
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Re: Trig Identities

*prove that

gah sorry for the triple post I cant edit my own posts
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July 12th, 2011, 09:58 PM   #4
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Re: Trig Identities

We are given:



On the left side, try multiplying by
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July 12th, 2011, 10:02 PM   #5
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Re: Trig Identities

Quote:
Originally Posted by Gokias
...I cant edit my own posts
Once you have made 10 or more posts you will be able to. It is an unfortunate but necessary anti-spam measure taken by our admin. I apologize for the temporary inconvenience.
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July 13th, 2011, 07:06 AM   #6
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Re: Trig Identities

Hello, Gokias!

Another approach . . .


Quote:





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July 13th, 2011, 07:37 AM   #7
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Re: Trig Identities

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July 13th, 2011, 08:07 AM   #8
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Re: Trig Identities

Quote:
Originally Posted by greg1313
As long as cos(x) ? 2
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July 13th, 2011, 08:24 AM   #9
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July 13th, 2011, 12:20 PM   #10
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Re: Trig Identities

Hahahaha, good one!
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