Question

Evaluate the expressions.

Answer 1

- 1 and 1

Explanation:

using the rule of exponents

•
`a^(0)` = 1

- (
`2^(0)`) = - 1

( -
`(4)/(9)`)^0 = 1

Answer 2

For this case we have that by definition, any number raised to zero gives 1.

Knowing that:

`\frac {a ^ 2} {a ^ 2} = 1` and by power properties of the same base we have that:
`\frac {a ^ 2} {a ^ 2} = a ^ {2-2} = a ^ 0`

So:

`a ^ 0 = 1`

So, if we have:

`- (2) ^ 0 = - (1) = - 1\\(- \frac {4} {9}) ^ 0 = 1`

Answer:

`- (2) ^ 0 = - (1) = - 1\\(- \frac {4} {9}) ^ 0 = 1`