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Ex 7.8
Ex 7.8, 2 You are here
Ex 7.8, 3
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Ex 7.8, 21 (MCQ) Important
Ex 7.8, 22 (MCQ)
Last updated at May 29, 2023 by Teachoo
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 logA−logB=𝑙𝑜𝑔(A/B)) =𝐥𝐨𝐠 𝟑/𝟐 (𝐴𝑠 3/2 𝑖𝑠 𝑝𝑜𝑠𝑖𝑡𝑖𝑣𝑒)