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:

 

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Subset and Universal Set

Watch video:                           Click here

Notes:

Homework:👉 Click Here

For answer, kindly visit tomorrow.

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Set Relations

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Uploaded By: www.snsmaths.blogspot.com

Uploaded By: www.snsmaths.blogspot.com

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Exercise  👉  Click Here

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Types of Sets

Watch This Video First    

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(Describing a Set)

1 Methods of describing a set: 

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1. Sets

Video:   Rewind to repeat.

              Pause to make note.

Exercise: 

 Q.1 State whether the following are well defined

        or not?
a. All the colors in the rainbow.
b. All the points that lie on a straight line.
c. All the honest members in the family.
d. All the consonants of the English alphabet.
e. All the tall boys of the school.
f. All the hardworking teachers in a school.
g. All the prime numbers less than 100.
h. All the letters in the word GEOMETRY

Q.2 Rewrite these sets in description and in set         

      builder method.

a) A = {a, e, i, o, u}

b) B = {3, 6, 9, 12, 15)

c) C = {5, 7, 11, 13}

d) D = { 1, 2, 4, 8}

Q.3 Rewrite these sets in listing method.

A)  N = { the natural numbers between 5 and 10 }

B)  A = { letters of the word 'MATHEMATICS' } 

C)  P = {x : x is a natural number, x < 9}

D)  Q = {y : y is an even number, y < 10}.

Q.4 On the basis of Q. 2 write the cardinal number  of each sets.

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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.  { }

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