Question

Which expression is equivalent to \frac{r^9}{r^3}

Answer 1

`\sf r^6`

Explanation:

Exponent law:

`\boxed{\bf (a^m)/(a^n)=a^(m-n)}`

In exponent division, if bases are same, subtract the powers.

`\sf (r^9)/(r^3)=r^(9-3)=r^(6)`