$($Approximate $)$ can be approximated as:

$=\sqrt[\phantom{2}]{6(1+\frac{1}{4}+\frac{1}{9}+\frac{1}{16}+\frac{1}{25}+\text{c}\text{d}\text{o}\text{t}\text{s})}$

Write a program that calculates and displays the result of

$\sqrt[\phantom{2}]{6(1+\frac{1}{4}+\frac{1}{9}+\frac{1}{16}+\frac{1}{25})}$

and

Hint: use $1\mathrm{.}0$ instead of $1$ in your expressions. Think about what header file to

include.