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19-04-2018
Mathematics

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[tex]y {}^{3} = 81[/tex]
what is the number for "y"

texy 3 81texwhat is the number for y class=

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19-04-2018

y = [tex] 3\sqrt[3]{3} [/tex]

81 is the same as 3 x 3 x 3 x 3. Therefore we can take out three of the four 3s and leave one inside the cube root radical.

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