Categories: Lesson Notes

SS1 First Term Mathematics Lesson Note – Sets II

The content is just an excerpt from the complete note for SS1 First Term Mathematics Lesson Note – Sets II. Check below to download the complete DOCUMENT

WEEK 5

Subject: Mathematics

TOPIC: Sets

CONTENT:

  • Set operations
  • Union
  • Intersection
  • Venn diagram.
  • Application of Venn diagram up to 3 set problem.

Operations on Sets

The Union of Sets:

The Union of Sets A and B is the Set that is formed from the elements of the two Sets A and B. This is usually denoted by “A ⋃B” meaning A Union B. Thus A ⋃B is the Set which consists of elements of A or of B or of both A and B.

Using Set notations, the Union of two Sets A and B is solved as follows

Example 1:

Given that A = {3, 7, 8, 10}

and B = {3, 5, 6, 8, 9} then

A  B= {3, 5, 6,7, 8, 9,10}

Example 2:

If A = {a, b, c, d}, B =  {1, 2, 3, 4} and C ={a, 3, θ} Then A ⋃B ⋃C = {a, b, c, d,1, 2, 3, 4, θ}

Class Activity

A = {7, 8, 9, 10}, B = {8, 10, 12, 14} and C = {7, 9, 10, 14. 15}

find the following:

  1. (a) A ⋃B (b) B⋃ C
  2. A ⋃B ⋃ C

Intersection of Sets

The intersection of Sets A and B is the set of elements that are common to both A and B. This is usually denoted by “A ∩ B” meaning A intersection B. When represented using Venn diagram we have

To gain full access to the note: DOWNLOAD FILE

Sunday

Share
Published by
Sunday

Recent Posts

OOU JUPEB Admission For Agricultural Extension

Do you want to study Agricultural Extension in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Agricultural Economics

Do you want to study Agricultural Economics in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Cooperative and Business Management

Do you want to study Cooperative and Business Management in OOU? Before you apply for…

11 months ago

OOU JUPEB Admission For Home and Hotel Management

Do you want to study Home and Hotel Management in OOU? Before you apply for…

11 months ago

OOU JUPEB Admission For Animal Production

Do you want to study Animal Production in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Crop Production

Do you want to study Crop Production in OOU? Before you apply for the OOU…

11 months ago