T (1 Viewer)

[Kutay]

I have a problem with this question not sure where to start would i need to use the t-method or what or first just find @ then substitute

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If tan x/2, express as simply as possible in terms of t, 1 - cos x / 1 + cos x



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[Dumsum]

t-method then simplify.

 

[Kutay]

thankyou,