Key learning points

1. All of the index laws can be applied with fractional exponents.
2. Using a calculator can help you to form an idea about how to evaluate a power containing a fractional exponent.
3. You can reason that a power with a fractional exponent is equivalent to finding the square root of the base.
4. √a = a^(1/2)

Keywords

• Reciprocal - A reciprocal is the multiplicative inverse of any non-zero number. Any non-zero number multiplied by its reciprocal is equal to 1.

Common misconception