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Example 6 - Work out (1)^5, (-1)^3, (-1)^4, (-10)^3, (-5)^4

Example 6 - Chapter 13 Class 7 Exponents and Powers - Part 2

 

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Transcript

Example 6 Work out (1)5, (–1)3, (–1)4, (–10)3, (–5)4. Any power of 1 gives 1 (1)5 = 1 × 1 × 1 × 1 × 1 = 1 × 1 × 1 = 1 × 1 = 1 (−1)3 = −1 × −1 × −1 = 1 × −1 = −1 (−1)4 = −1 × −1 × −1 × −1 = 1 × 1 = 1 (−10)3 = −10 × −10 × −10 = 10 × 10 × −10 = − (10 × 10 × 10) = − (100 × 10) = − 1000 (−5)4 = −5 × −5 × −5 × −5 = 5 × 5 × 5 × 5 = 25 × 25 = 625

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.