Ex 7.2, 1 (i) - (v) - Find cube root by prime factorisation 64, 512

 

  1. Chapter 7 Class 8 Cubes and Cube Roots
  2. Concept wise

Transcript

Ex 7.2, 1 Find the cube root of each of the following numbers by prime factorisation method. (i) 64We see that 64 = 2 × 2 × 2 × 2 × 2 × 2 Since 2 occurs in triplets ∴ 64 is a perfect cube. Cube root of 64 = 2 × 2 = 4

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.