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Ex 7.2, 1 (iv) - Chapter 7 Class 8 Cubes and Cube Roots
Last updated at March 16, 2023 by Teachoo
Ex 7.2
Ex 7.2, 1 (i)
Ex 7.2, 1 (ii) Important
Ex 7.2, 1 (iii)
Ex 7.2, 1 (iv) Important You are here
Ex 7.2, 1 (v)
Ex 7.2, 1 (vi)
Ex 7.2, 1 (vii) Important
Ex 7.2, 1 (viii)
Ex 7.2, 1 (ix) Important
Ex 7.2, 1 (x)
Ex 7.2, 2 (i)
Ex 7.2, 2 (ii) Important
Ex 7.2, 2 (iii)
Ex 7.2, 2 (iv)
Ex 7.2, 2 (v) Important
Ex 7.2, 2 (vi) Important
Ex 7.2, 2 (vii)
Ex 7.2, 3 Important
Transcript
Ex 7.2, 1 Find the cube root of each of the following numbers by prime factorisation method. (iv) 27000We see that 27000 = 2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 5 Since 2, 5 & 3 occur in triplets ∴ 27000 is a perfect cube. Cube root of 27000 = 2 × 5 × 3 = 30
