Question
Thu January 10, 2013 By:
limit x

evaluate limit

Expert Reply
Fri January 11, 2013
lim x tends  pi  1+ cos^3x/sin^2x
=lim x tends pi (1+cosx)(1+cos^2x-cosx)/(1+cosX)(1-cosX)
=(2-1)/2
=1/2
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