Exponentiation: Exponentiation is when we raise something to a power or multiply it by itself multiple times. Taking something to half-power (√x) is equivalent to raising it to 1/2 exponent.
Radical: A radical symbol (√) indicates taking roots or extracting values from under it. In this case, √x represents extracting the square root of x.
Rational Exponent: A rational exponent is a way to express roots as fractional exponents. For example, √x is equivalent to x^(1/2), where 1/2 is a rational exponent representing the square root.