Prove that the greatest integer function defined by ๐‘“(๐‘ฅ) = [๐‘ฅ], 0 < ๐‘ฅ < 2 is not differentiable at ๐‘ฅ = 1


This question is exactly same as Ex 5.2, 10 of Chapter 5 Class 12 Continuity and Differentiability in the NCERT Book.

Please check the answer and video here


  1. Class 12
  2. Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

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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.