Question

if 3√ of 729 is 9 then 3√0.000729 =

Answer 1

It is required to find the cube root of ,0.000729
this number can be rewritten as, 0.000729 = 729 /1000000
so the cube root of 0.000729 is equivalent to, ∛0.000729 = ∛729/ ∛1000000
fine the L.C.M of the number 729 as follow
729 = 3 x 3 x 3 x 3 x 3 x 3
1000000 = 100 x 100 x 100
so from we get
∛ 0.000729 = ∛ 3x 3 x 3 x 3 x 3 x 3 x3 /∛ 100 x100 x100
= 3 x 3 /100
= 9 /100 = 0.09 ans

Hope it helps

Answer 2

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