Asked by Jess
Find the limit as x-->-inf
(x+2)^(3/2)+1
----------I know that the answer is infinity but I don't know how to get this answer by hand. Could someone please help me? Thanks a lot!
(x+2)^(3/2)+1
----------I know that the answer is infinity but I don't know how to get this answer by hand. Could someone please help me? Thanks a lot!
Answers
Answered by
MathMate
You can use the (open) sandwich rule.
Since (x+2)^(3/2)+1 > x for all x>1,
so as x->∞, (x+2)^(3/2)+1 -> ∞.
Since (x+2)^(3/2)+1 > x for all x>1,
so as x->∞, (x+2)^(3/2)+1 -> ∞.
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