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3 years ago

Help me solve this please?

Mathematics

1 answer:

makkiz [27]3 years ago

8 0

Step-by-step explanation:

Simplify the following expression then state the property used:

9^-2

Property:

Given,

9^-2

For any real numbers a and b a, b ≠ 0, and for any two positive integers, n and n

a^-m

=> 1/a^m [By doing reciprocal]

So,

9^-2

=> 1/9^2

=> 1/(3^2)^2

=> 1/(3^4)

=> 1/(3*3*3*3)

=> 1/81. Ans.

Hope this helps.

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