(i) 345 = 3.45 × 100 = 3.45 × 102(ii) 180000 = 18 × 1000 = 18 × 104 = 1.8 × 10 × 104 =1.8 × 10(1+4) =1.8 × 105(iii) 0.000003 = = 3 × 10-6(iv) 0.000027 = = 2.7 × 10(1-6) = 2.7 × 10-5

Q. 65.0( 2 Votes )

Express each of t

Class 8th RS Aggarwal - Mathematics 2. Exponents

Answer :

(i) 345 = 3.45 × 100 = 3.45 × 10²

(ii) 180000 = 18 × 1000 = 18 × 10⁴ = 1.8 × 10 × 10⁴ =1.8 × 10⁽¹⁺⁴⁾ =1.8 × 10⁵

(iii) 0.000003 = = 3 × 10^-6

(iv) 0.000027 = = 2.7 × 10^(1-6) = 2.7 × 10^-5

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