Exercise 4.2 Q-3 | Class 12 Maths | Chapter 4: Higher Order Derivatives and Applications

In this lecture we solve Exercise 4.2, Question 3 from Class 12 Mathematics (Sindh Board). The question asks whether the Maclaurin’s series exists or not for the given functions: 1/x, cosec x, and √x. If the series does not exist, we explain the reason clearly.

I have discussed the behaviour of each function at x = 0 and shown why Maclaurin’s expansion cannot be applied when a function is undefined or not differentiable at the center. This is an important conceptual question because many students memorize series without understanding when they actually exist.

The explanation is in simple Urdu/Hindi to help students from Pakistan and all Urdu/Hindi speaking regions. If this video helps you, do share it with your friends and classmates.

Best wishes for your preparation!

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Видео Exercise 4.2 Q-3 | Class 12 Maths | Chapter 4: Higher Order Derivatives and Applications канала Concordia Garden Karachi