Question

28.calcule

A)³√8

B)³√125

C)³√27

D)³√8
64

E)³√27
125

F)√27
729

Answer 1

A) ∛8 = 2

B) ∛125 = 5

C) ∛27 = 3

D) (∛8)/64 = 2/64 = 1/32

E)(∛27)/125 = 3/125

F) (∛27)/729 = 3/729 = 1/243

Answer 2

$a) \\ \sqrt[3]{8} = \sqrt[3]{2^3} =2 \\ \\ b) \\ \sqrt[3]{125} = \sqrt[3]{5^3} =5 \\ \\ c) \\ \sqrt[3]{27} = \sqrt[3]{3^3} =3 \\ \\ d) \\ \sqrt[3]{ \frac{8}{64} } = \sqrt[3]{ \frac{1}{8} } = \sqrt[3]{ \frac{1}{2^3} } = \frac{1}{2} \\ \\ e) \\ \sqrt[3]{ \frac{27}{125} } = \sqrt[3]{ \frac{3^3}{5^3} } = \frac{3}{5} \\ \\ f) \\ \sqrt[3]{ \frac{27}{729} } = \sqrt[3]{ \frac{1}{27} } = \sqrt[3]{ \frac{1}{3^3} } = \frac{1}{3}$