Consider the power series of the function .
.
In general, using additional terms provides an approximation that is closer to the actual value of .
Consider the fourthpartial sum of . \ \
Similarly, consider the fifth partial sum of .
Similarly, consider the sixth partial sum of .
Using a calculator, the value of is
. \ \
Therefore, as the number of terms increases, the approximation approaches the actual value of
for different values of
.
As the number of terms increases, the approximation approaches the actual value of for different values of
.