cscx=(cot(x/2))/(1-cosx)

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- Apr 26th 2013, 11:43 AMthegurntrig identity verifying need help
cscx=(cot(x/2))/(1-cosx)

- Apr 26th 2013, 07:24 PMchiroRe: trig identity verifying need help
Hey thegurn.

Hint: What are the identities for tan(x/2) in terms of sine and cosine? - Apr 26th 2013, 07:40 PMbecauseifeellikeitRe: trig identity verifying need help
The best way to start is to write all the identities of sin and cosin, simplify, and then consider what identities you might need.

- Apr 26th 2013, 09:38 PMsa-ri-ga-maRe: trig identity verifying need help
- Apr 28th 2013, 12:02 PMthegurnRe: trig identity verifying need help
so there's no way to solve it as is?

- Apr 28th 2013, 07:35 PMsa-ri-ga-maRe: trig identity verifying need help
The identity is true when the problem is

cscx = cot(x/2)/(1+cosx) - Apr 28th 2013, 08:58 PMibduttRe: trig identity verifying need help
The identity is cscx = ( cot (x/2))/(1+cosx) = ( cos (x/2)/ sin ( x/2))/ [2 cos^2 ( x/2) ] [ Because cos 2a = 2cos^2A-1]

Which on simplification gives cscx