Question 76092
The given problem is:
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{{{(-13)^-1}}}
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The rule to follow for this problem is:
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{{{A^(-n) = 1/A^n}}}
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To use this rule on the given problem let A = (-13) and -n = -1 and n = 1
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Using the rule we get:
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{{{(-13)^(-1) = 1/(-13)^1 = -1/13}}}
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Note that the right side of this equation simplifies to {{{1/(-13)}}} or just {{{-1/13}}}.
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Hope this problem helps you to understand the meaning of negative exponents and how to 
get rid of them.