Ex 6.2, 6 (d) - Chapter 6 Class 12 Application of Derivatives
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
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
Ex 6.2
Ex 6.2,2
Ex 6.2,3 Important
Ex 6.2,4
Ex 6.2, 5 Important
Ex 6.2, 6 (a)
Ex 6.2, 6 (b) Important
Ex 6.2, 6 (c) Important
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
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