Mathing with Wahab

How mathematics users (Left) and mathematicians (Right) view the square root of x².

Comment:
The square root of a square of a real variable x is called the magnitude of x or the length of x which can never be a negative value.
Left: The variable x can take a negative value.
Right: The term |x| is a nonnegative value.

Applications of Differntiation (Part II): monotonous and extremum values using the first derivative test. Enjoy.

Applications of Differentiation (Part II) @wahabolalekan4539 This video describes the graph of a single-valued function using the concept of derivative to examine the local/global extremum of a function.