# Example 12 - Chapter 13 Class 11 Limits and Derivatives

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Example 12 Find the derivative of f(x) = 1 x f (x) = 1 We need to find Derivative of f(x) i.e. f (x) We know that f (x) = lim h 0 f x + h f(x) h Here, f (x) = 1 So, f (x + h) = 1 ( + ) Putting values f (x) = lim h 0 1 ( + ) 1 = lim h 0 ( + ) ( + ) = lim h 0 + = lim h 0 . ( + ) = lim h 0 1 ( + ) Putting h = 0 = 1 ( + 0) = 1 2 Hence f (x) =

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About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.