Ex 7.8, 2 - Chapter 7 Class 12 Integration - NCERT Solution Integrate ∫ 2 -> 1 1/x dx Step 1 :- F(x) = ∫ 1/x dx = log |x| Hence F(𝑥)=𝑙𝑜𝑔|𝑥| ∫1_2^3▒1/𝑥 𝑑𝑥=𝐹(3)−𝐹(2) =𝑙𝑜𝑔|3|−𝑙𝑜𝑔|2| =𝑙𝑜𝑔|3/2| (𝑈𝑠𝑖𝑛𝑔 log⁡A−log⁡B=𝑙𝑜𝑔(A/B)) =𝐥𝐨𝐠⁡ 𝟑/𝟐 (𝐴𝑠 3/2 𝑖𝑠 𝑝𝑜𝑠𝑖𝑡𝑖𝑣𝑒)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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