Operations

a$.$ Write a Python function called 'calculate$\_$area$\_$circle$($radius$)\text{'}$ that takes the radius of a circle as input and returns the area of the circle

b$.$ Write another function called 'calculate$\_$volume$\_$sphere$($radius$)\text{'}$ that takes the radius of a sphere as input and returns the volume of the sphere

Matrix Operation

a$.$ Define two matrices 'matrix$\_$A$\text{'}$ and 'matrix$\_$B$\text{'}$ as $2x2$ matrices

b$.$ Write a function called 'matrix$\_$multiplication$($matrix$\_$A$,$ matrix$\_$B$)\text{'}$ that takes two matrices as input and returns their multiplication if they are compatible, otherwi returns an error message

If Statement

a$.$ Write a Python program that prompts the user to enter their age

b$.$ Based on the age entered, the program should print one of the following messages

$"$If the age is less than $18,$ print "You are a minor

$"$ If the age is between $18$ and $65($inclusive$),$ print "You are an adult

$"$If the age is greater than $65,$ print "You are a senior citizen

Challenge Problem $($Optional$)$ Write a Python function called 'find$\_$largest$\_$element$($matrix$)\text{'}$ that takes a matrix as input and returns the largest element in the matrix