Using trig substitution, let ,
Since , then
From here, I do not know how to proceed.
Last edited by Paperwings; Dec 20th 2009 at 08:34 AM.
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You have: .
Ah, yes. Thank you. So,
I am a little unsure how to simplify this.
I picture a triangle with sides x and 2. the hypothenuse is .
Ah, ok. it's
Last edited by Paperwings; Dec 20th 2009 at 09:14 PM.
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