Ex 7.9, 2 - Find defnite integral 1/x dx from 1 to 2 - Definate Integration - By Formulae

  1. Chapter 7 Class 12 Integrals
  2. Serial order wise
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Ex 7.9, 2 - Chapter 7 Class 12 Integration - NCERT Solution Integrate โˆซ 2 -> 1 1/x dx Step 1 :- F(x) = โˆซ 1/x dx = log |x| Hence F(๐‘ฅ)=๐‘™๐‘œ๐‘”|๐‘ฅ| โˆซ1_2^3โ–’1/๐‘ฅ ๐‘‘๐‘ฅ=๐น(3)โˆ’๐น(2) =๐‘™๐‘œ๐‘”|3|โˆ’๐‘™๐‘œ๐‘”|2| =๐‘™๐‘œ๐‘”|3/2| (๐‘ˆ๐‘ ๐‘–๐‘›๐‘” logโกAโˆ’logโกB=๐‘™๐‘œ๐‘”(A/B)) =๐ฅ๐จ๐ โก ๐Ÿ‘/๐Ÿ (๐ด๐‘  3/2 ๐‘–๐‘  ๐‘๐‘œ๐‘ ๐‘–๐‘ก๐‘–๐‘ฃ๐‘’)

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.