Q21 The natural logarithm can be approximated by the following series. If x is input through the keyboard, write a program to calculate the sum of first seven terms of this series.

Program:115

The natural logarithm can be approximated by the following series.

\frac{x-1}{x}+\frac{1}{2}\left ( \frac{x-1}{x} \right )^{2}+\frac{1}{2}\left ( \frac{x-1}{x} \right )^{3}+\frac{1}{2}\left ( \frac{x-1}{x} \right )^{4}+.....

If x is input through the keyboard, write a c program to calculate the sum of first seven terms of this series.

Output:

Enter the value of x: 5
Result: 1.980570

Lokesh Kumar

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