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9th Class General Math Chapter 8 Test

9th Class · General Math · Federal (FBISE)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

If an object does not belong to set A, then we write
1. x = A
2. x A
3. x A
4. x A
{..........,4-,2-,0,2,4,6,8,..............} is the set of numbers.
1. Even
2. Correct
3. Odd
4. Prime
If f is an interaction from set A to set B and Rangef B is B, then f is called an interaction.
1. Bi-jacto interaction
2. On-to-interaction
3. One-to-one interaction
4. Into interaction
The union of two sets A and B is denoted.
1. A B
2. A B
3. A B
4. A B
If f is an interaction from set A to set B and Range f=B then f is called interaction from A to B.
1. One-to-one interaction
2. On-to-interaction
3. Bi-jacto interaction
4. Into interaction
A set which is a superset of the discussed sets is called a set.
1. Difference of two sets
2. Lower set
3. Complement set
4. Universal set
For any two sets A and B, A B = B A. This property is called
1. Attribute exchange
2. The property of necessity
3. Characterization
4. Transitive property
For any three sets A, B, C, A ( B C ) = ( A B ) C is called this property.
1. The property of necessity
2. Attribute exchange
3. Characterization
4. Transitive property
The intersection of two sets A and B is shown.
1. A B
2. A B
3. A B
4. A B
For any two sets A and B, A B = B A is called the property.
1. The property of necessity
2. Characterization
3. Transitive property
4. Attribute exchange

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

If A = { 1,4,7,8 } , B = { 4,6,8,9 } and C = { 3,4,5,7 } Find $A \cup B$
If U = {1,2,3,4,5,6,7,8} and A = { 2,3,5,7} then Find $A \cup A'$
Write the number of binary relations possible. In $A\times B$ if the number of elements in set A is 2 and in set B is 3.
If A = {3,4,5,6,7} and B = { 1,2,3,4,7,8,9,10} then Find $A/B$
If A = {2,3,5,7,11} and B = { 1,3,5,7,9} then Find $A \cap B$
If U = {1,2,3,........,20} and B = { 9,10,11,12,........,20} then Find $B' \cap B$
If A = { l, m, n } , B = { 3, 5, 7 } Then find $A\times B$
If A = {a,b,c} and B = { a,e,i,o,u } then Find $A \cup B$

If A = { 2,3,5,7,9 } , B = { 1,3,5,7 } and C = { 2,3,4,5,6 } Verify that $(A \cap B )\cap C=A \cap (B \cap C)$
If X = { 0,3,5 } and Y = { 2,4,8 } ,then establish any four binary relations. $X\times Y$
If A = {1,2,3,4}, B = { 7,8,9,10} and C = { 2,6 } then prove that $(A \cup B)\cup C =A \cup (B\cup C )$