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Text Solution

The colours in RAINBOW.All good books in a school library.The members of your family.The principals of your school.

Answer :

BSolution :

(a) The collection of colours in a RAINBOW is well-defined. So it is a set. <br> (b) We cannot say which books are there in our collection. So, it is not a well-defined collection. Hence, it is not a set. <br> (c) The members of your family is a well-defined collection. <br> `:.` It is a set. <br> (d) The collection of principals in your school is a well-defined collection. <br> `:.` It is a set <br> Hence, the correct option is (b).**What is sets in general collection of things**

**Sets in mathematics sets as natural number; whole number; real number)**

**Representation of Sets in Rosters form**

**Representation of sets in set-builder form**

**Conversion of roster form in set builder form**

**Conversion of set builder form in roster form**

**Some examples to identify the type of set ?**

**Explain Empty Sets ; Finite sets and Infinite sets with examples..**

**Explain Equivalent sets and equal sets with examples**

**What are the elements of a subset ?**