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Ex 6.2, 6 (d) - Chapter 6 Class 12 Application of Derivatives (Term 1)
Last updated at Aug. 19, 2021 by Teachoo
Transcript
Ex 6.2, 6 Find the intervals in which the following functions are strictly increasing or decreasing: (d) 6 โ 9๐ฅ โ ๐ฅ2 ๐(๐ฅ) = 6 โ 9๐ฅ โ ๐ฅ2 Calculating fโ(๐) fโ(๐ฅ) = โ9 โ 2๐ฅ fโ(๐ฅ) = โ(2๐ฅ+9) Putting fโ(๐) = 0 โ(2๐ฅ+9) = 0 2๐ฅ + 9 = 0 2๐ฅ = โ 9 ๐ = (โ๐)/๐ Plotting point ๐ = (โ๐)/๐ on real line Hence f is strictly Increasing for ๐ < (โ๐)/๐ & strictly Decreasing for ๐ > (โ๐)/๐
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Ex 6.2
Ex 6.2, 1
Ex 6.2,2
Ex 6.2,3
Ex 6.2,4
Ex 6.2, 5
Ex 6.2, 6 (a)
Ex 6.2, 6 (b)
Ex 6.2, 6 (c)
Ex 6.2, 6 (d) You are here
Ex 6.2, 6 (e) Important
Ex 6.2, 7
Ex 6.2,8 Important
Ex 6.2,9 Important
Ex 6.2,10
Ex 6.2,11
Ex 6.2, 12 (A)
Ex 6.2, 12 (B) Important
Ex 6.2, 12 (C) Important
Ex 6.2, 12 (D)
Ex 6.2, 13 (MCQ) Important
Ex 6.2,14 Important
Ex 6.2,15
Ex 6.2, 16
Ex 6.2,17 Important
Ex 6.2,18
Ex 6.2,19 (MCQ) Important
Chapter 6 Class 12 Application of Derivatives (Term 1)
Serial order wise
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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.