Sqrt(x^2 + 4)

Definition

sqrt(x^2 + 4) represents a mathematical function that takes the square root of the sum of x squared and 4. It is a way to express a relationship between the variable x and the resulting output.

Related terms

Square Root: The square root of a number is another number that, when multiplied by itself, gives the original number.

Function:

A function is like an app on your phone. You input something (like x), it does some calculations or operations, and then spits out an output based on those operations.

Variable: In mathematics, variables are symbols used to represent unknown quantities or values that can change. They allow us to work with general formulas instead of specific numbers.