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Ex 12.1, 4 - Evaluate (i) 8^-1 x 5^3 / 2^-4 (ii) (5^-1 x 2^-1) x 6^-1

 

 

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Transcript

Ex 12.1, 4 Evaluate (i) (8^(−1) × 5^3)/2^(−4) (8^(−1) × 5^3)/2^(−4) = 8^(−1) × 5^3×1/2^(−4) = 1/8 × 5^3×2^4 = (5^3 × 2^4)/8 = (5 × 5 × 5 × 2 × 2 × 2 × 2)/8 = 5 × 5 × 5 × 2 = 25 × 10 = 250

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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.