Ex 6.2,10
Last updated at Dec. 8, 2016 by Teachoo
Transcript
Ex 6.2,10 Prove that the logarithmic function is strictly increasing on (0, ). f𝑥 = log 𝑥 We need to prove f𝑥 in increasing on 𝑥 ∈ 0 , uc1 i.e. we need to show f’ 𝑥 > 0 for x ∈ 0 , uc1 Now, f 𝑥 = log 𝑥 f’𝑥 = 1𝑥 When 𝑥 > 0 ⇒ 1 𝑥 > 0 ⇒ f’𝑥 > 0 Hence f𝑥 is an increasing function for 𝒙 > 0
Chapter 6 Class 12 Application of Derivatives
Serial order wise
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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .