Calculous limit problems

Mathematics
Tutor: None Selected Time limit: 1 Day

i am stuck on this problem. here is a pic of the problem

http://imgur.com/yNcHIEC

i just need #'s 64 and 68 answered, please include all steps worked out in your answer

thanks for your help

Jan 13th, 2015

64- 

f(x)=x^2

applying limit, x->-1

f(x)= (-1) ^2 = 1

now for limit x->0

f(x)= (0)^2 = 0

68-

g(x)= 1/x+2

applying limit, x->-1

g(x)=1/-1+2 = 1/1 = 1

applying limit, x->-2

g(x)=1/-2+2 = 1/0 = undefined

Jan 13th, 2015

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