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| PAGE: 566 | SET: Exercises | PROBLEM: 85 |
The functions are 
and 
.
Consider 
.
Apply derivative on each side with respect to 
.
.
Consider 
.
Apply derivative on each side with respect to 
.
.
Consider the functions 
and 
.
Graph the functions 
and 
.
Observe the graph :
As tends to 
, the function value of 
approaches to 
.
As tends to 
, the function value of 
approaches to 
.
By apply L
Hospitals Rule: 
.
Graph of the functions and is
As tends to , the function value of 
approaches to .
As tends to , the function value of 
approaches to .
.
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