Ex 12.2, 3 - Chapter 12 Class 8 Exponents and Powers - Part 4

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  1. Chapter 12 Class 8 Exponents and Powers
  2. Serial order wise

Transcript

Ex 12.2, 3 Express the number appearing in the following statements in standard form. (iv) Size of a plant cell is 0.00001275 m 0.00001275 m = 1275/100000000 = 1275/〖10〗^8 = 1275 × 〖10〗^(−8) = (1.275 × 〖10〗^3) × 〖10〗^(−8) = 1.275 × (〖10〗^3×〖10〗^(−8)) = 1.275 × 〖10〗^(3 + (−8)) = 1.275 × 〖𝟏𝟎〗^(−𝟓) m (Using 𝑎^𝑚×𝑎^𝑛=𝑎^(𝑚 + 𝑛))

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.