Question
#lim_(wto(3pi)/4)2cot(2w)#?
#lim_(wto(3pi)/4)2cot(2w)#?
Answers
#lim_(wto(3pi)/4)2cot(2w)=0# Explanation:
#2cot(2w)=2cos(2w)/sin(2w)#
#2w=2((3pi)/4)=(3pi)/2#
#sin((3pi)/2)=-1#
#cos((3pi)/2)=0#
#2(0/-1)=2(0)=0#
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