The series is .
(a)
\.
The series is in the form of geometric series.
\The sum of terms in geometric series is
.
Here first term and
.
.
Find sum of infinite terms of the series.
\The sum of infinite terms is .
.
.
(b)
\Graph the function .
Observe the graph:
\Tabulate the values for different values of
.
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(c)
\Find the first ten terms of the sequence.
\The sum of series is .
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
Graph :
\Graph the values .
(d)
\The terms of the series decrease in magnitude slowly.So, the sequence of partial sums approaches the sum slowly.
\(a) .
(b)
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(c)
\Graph :
\Graph the values .
(d) The terms of the series decrease in magnitude slowly.So, the sequence of partial sums approaches the sum slowly.