Question

3. You are told that 1,331 is a perfect cube. Can you guess without factorisation what is its cube root? Similarly, guess the cube roots of 4913, 12167,32768.​

Answer 1

Answer:

It is cube root of 11. We can guess the roots of other roots by their last letters

Answer 2

Step-by-step explanation:

Can you guess without factorisation what is its cube root? Similarly, guess the cube roots of 4913, 12167, 32768. We know that, since, the unit digit of cube is 1, the unit digit of cube root is 1. ∴ We get 1 as unit digit of the cube root of 1331.