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RS Aggarwal Solutions Class 8 Mathematics Solutions for Cubes and Cube Roots Exercise 4D in Chapter 4 - Cubes and Cube Roots

Question 8 Cubes and Cube Roots Exercise 4D

\sqrt[3]{(64/343)}=?

a) 4/9

b) 4/7

c) 8/7

d) 8/21

Answer:

Firstly we have to find the prime factors of 64

64 = 2 × 2 × 2 × 2 × 2 × 2

And the prime factors of 343

343 = 7 × 7 × 7

\sqrt[3]{(64/343)}=\sqrt[3]{(4\times4\times4/4\times4\times4)}

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