Ex 13.2, 2 - Chapter 13 Class 7 Exponents and Powers - Part 12

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Ex 13.2, 2 - Chapter 13 Class 7 Exponents and Powers - Part 13

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

Transcript

Ex 13.2, 2 Simplify and express each of the following in exponential form: (ix) (2^8 ร—ใ€– ๐‘Žใ€—^5)/(4^3 ร—ใ€– ๐‘Žใ€—^3 ) (2^8 ร— ๐‘Ž^5)/(4^3 ร— ๐‘Ž^3 ) = (2^8 ร—ใ€– ๐‘Žใ€—^5)/((2 ร— 2)^3 ร—ใ€– ๐‘Žใ€—^3 ) = 2^8/(2^2 )3 ร— ๐‘Ž^5/๐‘Ž^3 Using, (am)n = ๐‘Ž^(๐‘š ร— ๐‘›) = 2^8/2^6 ร— ๐‘Ž^5/๐‘Ž^3 Using, ๐‘Ž^๐‘š/๐‘Ž^๐‘› = ๐‘Ž^(๐‘š โˆ’ ๐‘›) = 28 โˆ’ 6 ร— a5 โˆ’ 3 = 22 ร— a2 Using, am ร— bm = (a ร— b)m + n = (2 ร— a)2 = (2a)2 = (2 ร— a)2 = (2a)2

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