Math$-1.$py : Try out some math functions.$$ You may need to use online help for this.

Important: Add this import statement immediately after your $"""$docstring$"""$

import math$$

Paste these comments into your python file, as a heading for each task. Then write a line of code below each comment, to provide the result as shown.$$

# cut off $7\mathrm{.}89$ to $7$

# round $54\mathrm{.}345395$ to $54\mathrm{.}345$

# calculate the square root of $2$

# calculate the sin of $7$

# display the value of pi

# display pi rounded to $3$ decimal places