Example 9 - Chapter 13 Class 7 Exponents and Powers

Last updated at Dec. 18, 2018 by Teachoo

Transcript

Example 9 Expand: (i) (3/5)^4 (3/5)^4 As 𝑎^𝑚/𝑏^𝑚 = (𝑎/𝑏)^𝑚 (3/5)^4 = 3^4/5^4 = (𝟑 × 𝟑 × 𝟑 × 𝟑)/(𝟓 × 𝟓 × 𝟓 × 𝟓) Example 9 Expand: (ii) ((−4)/7)^5 ((−4)/7)^5 As 𝑎^𝑚/𝑏^𝑚 = (𝑎/𝑏)^𝑚 = 〖(−4)〗^5/〖(7)〗^5 = ((−𝟒) × (−𝟒) × (−𝟒) × (−𝟒))/(𝟕 × 𝟕 × 𝟕 × 𝟕 × 𝟕)

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Chapter 13 Class 7 Exponents and Powers

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Ex 13.1
Ex 13.2
Ex 13.3
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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.