Mammoth Memory

Indices law - law 9

`(a/b)^n=(a^n/b^n)`

To remember this: try simple numbers you know first

First part `(a/b)^n`

Try        `(4/2)^3`

`=(2)^3`

`=2\times2times2=8`

 

Second part  `(a^n/b^n)`

Try        `(4^3/2^3)`

`(4\times4\times4)/(2\times2\times2)`

`=64/8`

`=8`

So yes  `(a/b)^n=(a^n/b^n)` 

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