Скачать или смотреть Exercise 3.1 Full Solution || Chapter 3 Class 9 Maths || New Book PCTB 2025

These questions are according to the Punjab new book of Maths 9th Class.

📌 Topics Covered in Chapter 3:
✔️ Sets and Functions
✔️ Three ways to describe a set (descriptive form, tabular form, set builder method)
✔️ Types of sets and their operations
✔️ Principle of Inclusion and Exclusion of two and three sets
✔️ Binary relations and their functions

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⏩ 00:00:30 – What is a Set
⏩ 00:02:05 – Methods to Write a Set
⏩ 00:06:20 – Types of Sets
⏩ 00:18:30 – Q1: Write the following sets in set builder notation
⏩ 00:26:53 – Q2: Write each of the following sets in tabular forms
⏩ 00:31:54 – Q3: Write two proper subsets of each of the following sets
⏩ 00:34:52 – Q4: Is there any set which has no proper subset? If so, name that set.
⏩ 00:35:12 – Q5: What is the difference between {a,b} and {{a,b}}?
⏩ 00:36:07 – Q6: What is the number of elements of the power set of each of the following:
⏩ 00:38:20 – Q7: Write down the power sets of each of the following sets

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