SOLUTION: how do you prove that the limit of x approaching 18 of (36-2x)/((sqrt2x)-6)= -12

SOLUTION: how do you prove that the limit of x approaching 18 of (36-2x)/((sqrt2x)-6)= -12

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Question 951039: how do you prove that the limit of x approaching 18 of (36-2x)/((sqrt2x)-6)= -12
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use a substitution, let
Then,

So then,

So now in the limit as x approaches 18.

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