Ex 6.2,12 - Chapter 6 Class 12 Application of Derivatives - Part 7

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  1. Chapter 6 Class 12 Application of Derivatives (Term 1)
  2. Serial order wise

Transcript

Ex 6.2, 12 Which of the following functions are strictly decreasing on (0,๐œ‹/2) ? (D) tan ๐‘ฅf(๐‘ฅ) = tan ๐‘ฅ fโ€™(๐’™) = sec2 ๐’™ As square of any number is always positive So, fโ€™(๐‘ฅ) > 0 for all values of ๐‘ฅ โˆด f is strictly increasing on (0 , ๐œ‹/2)

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Davneet Singh
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.