For Finding Integration of lnx (log x),

we use Integration by Parts

 

We follow the following steps

  1. Write ∫ log x dx = ∫ (log x) . 1 dx
  2. Take first function as log x, second function as 1.
  3. Use integration by Parts and solve

Example 18 - Find integration log x (lnx) - Integration by parts

There are other formulas which are used to find Integral, refer Integral Table .

  1. Chapter 7 Class 12 Integrals
  2. Serial order wise

Transcript

Example 18 Find Intgeral of log x ln x log = log .1 Using by parts I function = f(x) = log & II function =g(x) = 1 log .1 = log 1 . log 1 . = log 1 . . = log 1 . = +

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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.