Ex 6.2, 6 (a) - 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: (a) ๐ฅ2 + 2๐ฅ โ 5 f(๐ฅ) = ๐ฅ2 + 2๐ฅ โ 5 Calculating fโ (๐) fโ(๐ฅ) = 2๐ฅ + 2 fโ(๐ฅ) = 2 (๐ฅ + 1) Putting fโ (๐) = 0 2 (๐ฅ + 1) = 0 (๐ฅ + 1) = 0 ๐ = โ1 Plotting point on real line Hence, f is strictly decreasing for (โโ ," โ1" ) f is strictly increasing for ( "โ1" ,โ)
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Ex 6.2, 6 (a) You are here
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