a^{n} = \frac{1}{a^{- n}}

${a^n = \frac {1} {a^{-n}}}$

a^{n} = \frac{1}{a^{- n}}

$a^n = \frac {1} {a^{-n}}$

a^{n}

$a^n$

a

$a$

a

$a$

1

n

$n$

1

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