The function is
.
Construct a table for different values of
and find the values of
.
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Observe the table,
\As
tends to large positive integer,
approaches to
.
Graph :
\Graph the function
.
(1).gif\")
Observe the graph :
\As
tends to large positive integer,
approaches to
.
The function is
.
Rationalise the denominator.
\
Take out
as a common factor.

Apply infinity limit on each side.
\
.
As
, then
.

.
Table :
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Graph of the function
is
(1).gif\")
As
tends to large positive integer,
approaches to
.
.