## Definition

The radical symbol (√) is used to denote the root of a number, such as a square root or cube root.

## Description

The Radical Symbol is a fundamental notation in the study of Radical Numbers, Expressions, Equations, and Functions. This symbol (√) indicates the root of a number, with the most common being the square root. For example, the expression

$$\sqrt{25}$$

represents the square root of 25, which is 5. The radical symbol can also be used to denote higher-order roots, such as cube roots (∛) and fourth roots. Understanding the radical symbol is crucial for interpreting and simplifying radical expressions. It is widely used in various fields, including geometry, where it helps in calculating distances and areas, and in physics, where it describes relationships involving roots. Mastery of the radical symbol enables students to work with radical expressions, solve radical equations, and apply these concepts to real-world problems. The radical symbol also plays a significant role in calculus, where it is used in limits, derivatives, and integrals. By understanding the radical symbol, students can better grasp the properties of numbers and their relationships.

For a complete collection of terms related to polynomials click on this link: Rationals and Radicals Collection

Common Core Standards CCSS.MATH.CONTENT.HSA.REI.A.2, CCSS.MATH.CONTENT.HSN.RN.A.1, CCSS.MATH.CONTENT.HSF.IF.C.7 8 - 12 Algebra     • Radical Expressions and Functions         • Radical Expressions 2014 radicals, radical expressions, rational numbers, rational expressions, definitions, glossary term, rational functions