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Mathematics 20 Online
OpenStudy (anonymous):

find the power. write in fraction form. (-2)^-6=?

OpenStudy (anonymous):

\[\frac{1}{(-2)^6}\] is a start

OpenStudy (anonymous):

do you know what 2^6 is? a negative exponent means reciprocal and check the sign, which depends on whether the exponent is odd or even

OpenStudy (anonymous):

I dont understand. Im trying to say that the exponent is negative 6...

OpenStudy (anonymous):

\[b^{-n}=\frac{1}{b^n}\]

OpenStudy (anonymous):

so do I multily the new fraction by its reciprical...?

OpenStudy (anonymous):

so 2^6 I know is 64....at least I believe it is...

OpenStudy (anonymous):

in that case it is either 1/64 or -1/64

OpenStudy (anonymous):

the answer should be positive

OpenStudy (anonymous):

\[(-2)^{-6} = {1 \over {(-2)(-2)(-2)(-2)(-2)(-2)}}\]

OpenStudy (anonymous):

that's it! you got it

OpenStudy (anonymous):

so the answer is 1/64? O-o

OpenStudy (anonymous):

don't doubt yourself... you know this stuff, just step through it slowly

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