tiffanyblake65 tiffanyblake65

21-09-2018
Mathematics

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jimrgrant1 jimrgrant1

21-09-2018

[tex]\frac{1}{343}[/tex]

using the ' law of exponents '

a[tex]^{-m}[/tex] =[tex]\frac{1}{7^{3} }[/tex]

thus [tex]7^{-3}[/tex]= 1/[tex]7^{3}[/tex]= [tex]\frac{1}{343}[/tex]

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