Exercise $4($don$\text{'}$t forget to add comments to your code$)$ :

Create a C$++$ program that does the following:

a$.$ Prompts the user to enter a number.

b$.$ Displays the square root of the number using the sqrt$()$ function.

c$.$ Displays the power of the number raised to $3$ using the pow$()$ function.

d$.$ Displays the absolute value of the number using the fabs$()$ function.

e$.$ Displays the cosine and sine of the number $($in radians$)$ using the $cos()$ and $)$ functions.