Ex 13.3, 4 - Chapter 13 Class 7 Exponents and Powers - Part 3

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  1. Chapter 13 Class 7 Exponents and Powers
  2. Serial order wise

Transcript

Ex 13.3, 4 Express the number appearing in the following statements in standard form. (c) Diameter of the Earth is 1,27,56,000 m. 1,27,56,000 = 12756 × 〖10〗^3 = (1.2756 × 〖10〗^4) × 〖10〗^3 = 1.2756 × 〖10〗^4 × 〖10〗^3 = 1.2756 × 〖10〗^(4 + 3) = 1.2756 × 〖10〗^7 Answer is 1.2756 × 〖𝟏𝟎〗^𝟕 m (Using am × an = am + n) Answer is 3.84 × 〖𝟏𝟎〗^𝟖 m (Using am × an = am + 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.