Proof: Every Prime has a Primitive Root

The Proof of the Derivative of the Square Root of x.

Proof of Limit of Constant Function

Showing that a Function Has Exactly One Root

Calculus: Newton's Method (1 of 7) Basics: Roots of Functions

Prove the equation has at least one real root (KristaKingMath)

Showing a Function Has Exactly One Real Root

Ex: Domain and Range of Square Root Functions

Finding Roots or Zeros, Multiplicities, Degree, and Leading Term of a Factored Function

How to Prove a Number is an Algebraic Number: Example with cuberoot(2) + sqrt(3)