Exponents and Roots

The n-root of a value is equivalent to the value taken to power of the reciprocal of n (1/n).

The general form of an exponential function. The variable x is called the base of the function and n indicates the degree of the function.

Any value (other than zero) taken to the power zero is always equal to 1. This includes negative numbers and fractions.

A negative exponent indicates the reciprocal of the value taken to the same degree.

Zero taken to a positive (n=0) power is zero.

Zero taken to a negative (n<0) power is not a real number.

with 1 term:

with 2 terms:

Sophisticated