Question

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Answer 1

9⁻³ / 9¹² = 9⁻³⁻¹² = 9⁻¹⁵

Answer 2

`9^-^1^5`

Explanation:

`(9^(-3))/(9^(12))`

`\mathrm{Apply\:exponent\:rule}:\quad (x^a)/(x^b)=x^(a-b)`

`=9^(-3-12)`

`\mathrm{Subtract\:the\:numbers:}\:-3-12=-15`

`=9^(-15)`

Answer
`=9^(-15)`

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