Question

if A=(1,2,3,4) and B=(3,4,5,6) then A U B,A (ulta U) B,A+B ,A-B.

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Answer 1

Answer:

down

Step-by-step explanation:

AUB = (1,2,3,4,5,6)

A(ulta U) B = (3,4)

A+B = (1,2,3,4,5,6)

A-B = (1,2)

Answer 2

Answer:

A = { 1, 2, 3, 4 }

B = { 3, 4, 5, 6 }

1. A ∪ B = { 1, 2, 3, 4, 5, 6 }

2. A ∩ B = { 3, 4 }

3. A + B = { 1, 2, 3, 4, 5, 6 }

4. A - B = { 1, 2 }

Step-by-step-explanation:

Here, two sets are given. We have to find four things. Those are Union, Intersection, Addition and Subtraction of two sets.

Additional Information:

1. Set :

The group of well defined objects is known as 'set'.

Ex. : A set of days in a week.

2. Types of set:

There are total four types of sets.

A. Singleton set.

B. Empty set or Null set.

C. Finite set.

D. Infinite set.

3. Methods of writing a set:

A. Listing method:

X = { 1, 3, 5, 7, 9 }

B. Roster form or Rule method:

X = { x | x is an odd number, x ∈ N, x ≤ 1 }

4. Union of two sets:

The set formed by the union of all elements in two sets, is called Union of two sets.

5. Intersection of two sets:

The set formed by only common elements in two sets, is called Intersection of two sets.

6. Addition of two sets:

The union of all elements in two sets is called the addition of two sets. It is same as the Union of two sets.

7. Subtraction of two sets:

The set formed by removing common elements from one of the two sets, is called Subtraction of two sets.