Tricky Trig Proof Id - YouTube

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- Nov 3rd 2012, 12:20 PMMelcarthusHelp Me With This Trig ID proof Please Soon!
- Nov 3rd 2012, 05:05 PMchiroRe: Help Me With This Trig ID proof Please Soon!
Hey Melcarthus.

Your equation is wrong. As an example let theta = 0, then on the LHS you get 0/0 for the answer but on the RHS you get 1/1.

The equation is screwed up. - Nov 3rd 2012, 08:42 PMSorobanRe: Help Me With This Trig ID proof Please Soon!
Hello, Melcarthus!

Quote:

The left side is: .

Then: .

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- Nov 5th 2012, 09:20 AMStefanTMRe: Help Me With This Trig ID proof Please Soon!
Hi Melcartus,

a alternative solution:

(sint-cost+1)*cost=(sint+cost-1)*(sint+1)

You receive a identity, not forget, that sin^2(t)+cos^2(t)=1.