Question

Which expression is equivalent to r^9/r^3

Answer 1

`\cfrac{r^9}{r^3} =r^(9-3)=r^6`

Answer 2

The correct option is B.

Explanation:

The given expression is

`(r^9)/(r^3)`

According to the property of exponent,

`(x^a)/(x^b)=x^(a-b)`

Using this property of exponent, we get

`(r^9)/(r^3)=r^(9-3)`

`(r^9)/(r^3)=r^(6)`

The expression
`r^(6)` is equivalent to the given expression.

Therefore the correct option is B.