Ex 11.1, 7 - Chapter 11 Class 7 Exponents and Powers

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Ex 11.1, 7 Simplify: (i) (– 4)3 (−4)3 = −4 × −4 × −4 = 4 × 4 × −4 = − (4 × 4 × 4) = − (16 × 4) = − 64 Ex 11.1, 7 Simplify: (ii) (–3) × (–2)3 (−3) × (−2)3 = −3 × −2 × −2 × −2 = 3 × 2 × 2 × 2 = 6 × 4 = 24 Ex 11.1, 7 Simplify: (iii) (–3)2 × (–5)2 (–3)2 × (–5)2 = −3 × −3 × −5 × −5 = 3 × 3 × 5 × 5 = 9 × 25 = 225 Ex 11.1, 7 Simplify: (iv) (–2)3 × (–10)3 (–2)3 × (–10)3 = −2 × −2 × −2 × −10 × −10 × −10 = 2 × 2 × 2 × 10 × 10 × 10 = 8 × 1000 = 8000

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo