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Mathematics 13 Online
OpenStudy (anonymous):

I need help with this question, no, i don't need the answer, only help. So, how can I find the value of 8 to the power of -2?

OpenStudy (mathstudent55):

\(a^{-n} = \dfrac{1}{a^n} \)

OpenStudy (mathstudent55):

A negative exponent in the numerator means a positive exponent in the denominator.

OpenStudy (anonymous):

Oh, so, like the other guy said, I basically flip it?

OpenStudy (mathstudent55):

Yes.

OpenStudy (anonymous):

Ok, thanks!

OpenStudy (mathstudent55):

When you flip it, the exponent becomes positive.

OpenStudy (mathstudent55):

You're welcome.

OpenStudy (anonymous):

That is the rules of indices

OpenStudy (anonymous):

Just understand and memorize them and you can solve any index related problem

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