Disjoint Sets

Q.

What is meant by

A-B

when A and B are two sets with different element what will be its result?give example.

Q. If A = { 2, 4, 6, 8 } and B = { 1, 3, 5, 7, 9 } , then A and B are

1. equal sets
2. equivalent sets
3. disjoint sets
4. joint sets

Q. Identify the disjoint sets among the given pair of sets.

1. A = { 1, 2, 3} and B = { 3, 5, 7 }
2. A = { 0, 2, 9} and B = { 3, 5, 8 }
3. A = { 8, 9, 11} and B = { 9, 6, 8 }
4. None of the above

Q.

If A = {1, 3, 7, 8} and B = {2, 4, 6}, then A and B are ______ .

1. equal sets

2. equivalent sets

3. disjoint sets

4. joint sets

Q.

If A = {Quadrilaterals} and B = {Rectangles} then the set A and set B are disjoint sets.

1. True

2. False

Q.

Given that the perimeter of a polygon is 92m and its area is $529m^2$. Its adjacent sides are equal and perpendicular. Find the number of lines of symmetry.

___

Q. Identify the disjoint sets among the given pair of sets.

1. A = { 1, 2, 3} and B = { 3, 5, 7 }
2. A = { 0, 2, 9} and B = { 3, 5, 8 }
3. A = { 8, 9, 11} and B = { 9, 6, 8 }
4. None of the above

Q.

Write ‘T’ for True or ‘F’ for False for the given statements.

$13\notin$ the set of odd numbers.

1. True
2. False

Q.

Classify the sets $A=\left\{b,c,d,y\right\}$ and $B=\left\{2,3,4,5,25\right\}$ as equivalent, non-equivalent or equal sets.