2(sec x-1)=tan x, and x is not a multiple of pie/2, prove that tan (x/2) = 1/2 and deduce the values of sin x and cos x.
Ans: sin x = 4/5 cos x = 3/5
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- Thread Starter
- 14-09-2015 13:15
- Official Rep
- 15-09-2015 22:40
Sorry you've not had any responses about this. Are you sure you’ve posted in the right place? Posting in the specific Study Help forum should help get responses.
I'm going to quote in Tank Girl now so she can move your thread to the right place if it's needed.
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- Study Helper
- 16-09-2015 14:15