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Ex 7.2, 1 (vi) - (x) - Chapter 7 Class 8 Cubes and Cube Roots - Part 2


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Ex 7.2, 1 Find the cube root of each of the following numbers by prime factorisation method. (vii) 110592We see that 110592 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 Since 2 & 3 occur in triplets ∴ 110592 is a perfect cube. Cube root of 110592 = 2 × 2 × 2 × 3 = 16 × 3 = 48

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.