Indices law - law 2

`a^-n=1/a^n`

A negative is divide

To remember this put simple numbers in. ie Try simple numbers you know first.

`10^-2=1/10^2=1/(10times10)=1/100=0.01`

`8^-1=1/8=0.125`

`8^-2=1/8^2=1/(8times8)=1/64=0.0156`

Also try other examples you know like starting with `10^2` and remove `1` from the power and understand the answer you get:

Remove 1 from the power and the answer gets smaller and smaller

Examples

1. `5^-3` is the same as `1/5^3`

2. `x^-3` is the same as `1/x^3`