AMATHS!~ HELP PROVE IDENTITY cosec x + cot x = cot(x/2)
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AMATHS!~ HELP PROVE IDENTITY cosec x + cot x = cot(x/2)

[From: ] [author: ] [Date: 12-03-16] [Hit: ]
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Prove that cosec x + cot x = cot(x/2)

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LHS=1/sinx +cosx/sinx
=(1+cosx)/sinx
= 2cos^2(x/2)/2sin(x/2)cos(x/2)
=cos(x/2)/sin(x/2)
= cot(x/2)
1
keywords: IDENTITY,HELP,PROVE,cot,AMATHS,cosec,AMATHS!~ HELP PROVE IDENTITY cosec x + cot x = cot(x/2)
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