Exponent Laws

From RaVPup's Notes

There are six exponent laws that should be followed when manipulating terms in the \mathbb{R} field. These six rules are as follows.


Contents

Exponent Law 1

x^mx^n=x^{m+n} \

Exponent Law 2

\frac{x^m} {x^n}=x^{m-n} \

Exponent Law 3

(x^m)^n = x^{mn} \

Exponent Law 4

x^0 = 1 \mbox{ where } x \ne 0 \

The case where 00 is 1 by definition but cannot be derived from any of the rules of mathematics.

Exponent Law 5

\left( xy \right)^m = x^my^m \

Exponent Law 6

\left( \frac{x}{y} \right)^m = \frac{x^m} {y^m} \

Exponent Law 7

x^{-m} = \frac {1} {x^m} \

Exponent Law 8

\left( \frac{x}{y} \right)^{-m} = \left( \frac{y} {x} \right)^m \