Set Operations

 A∪B 👉 A union B 👉 All elements of the set A & B.

A∩B👉 A Intersection B 👉Common elements of the set A & B.

A - B👉 A Difference B 👉Elements of the set A only.

B - A👉 B Difference A 👉Elements of the set B only.

A' / Ā / Ac 👉 Complement of A 👉Elements which are not in the set A.

      For Exercise 👉 Click Here

 Check this video for Union and Intersection:

 

Read More

Types of Sets

Watch This Video First:

 A Which of the following sets are empty,
         unit, finite or infinite?       

1.  { counting number less than 1}
2.  { even numbers divisible by 3}
3.  { a, b, c, ......u}
4.  {letters in the word "CLASS"}
5.  {x:x is a whole number, x<1}
6.  {prime numbers between 5 and 7}
7.  {multiples of 5}
8.  {even prime numbers}
9.  {composite numbers less than 100}
10.  { }

Read More

>>> Right angled triangle. (Class with worksheet)

  Non techno group can teach like this...

   First video so little hopeless.

Worksheet-01

Read More