Table of Contents
Chapter 1 Sets Exercise Ex. 1.1
Question 1
Solution 1
Question 2
Solution 2
Question 3
If A = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, then insert the appropriate symbol or in each of the following blank spaces:
- 4…A
- -4 …A
- 12 ….A
- 9 …A
- 0 …..A
- -12 ….A
Solution 3
Chapter 1 Sets Exercise Ex. 1.2
Question 1(i)
Solution 1(i)
Question 1(ii)
Solution 1(ii)
Question 1(iii)
Solution 1(iii)
Question 1(iv)
Solution 1(iv)
Question 1(v)
Solution 1(v)
Question 1(vi)
Solution 1(vi)
Question 1(vii)
Solution 1(vii)
Question 1(viii)
Solution 1(viii)
Question 1(ix)
Solution 1(ix)
Question 2(i)
Solution 2(i)
Question 2(ii)
Solution 2(ii)
Question 2(iii)
Solution 2(iii)
Question 2(iv)
Solution 2(iv)
Question 2(v)
Solution 2(v)
Question 2(vi)
Solution 2(vi)
Question 2(vii)
Solution 2(vii)
Question 2(viii)
Solution 2(viii)
Question 3(i)
Solution 3(i)
Question 3(ii)
Solution 3(ii)
Question 3(iii)
Solution 3(iii)
Question 3(iv)
Solution 3(iv)
Question 3(v)
Solution 3(v)
Question 3(vi)
Solution 3(vi)
Question 4
Solution 4
Question 5
Solution 5
Question 6
Solution 6
Question 7
Solution 7
Chapter 1 Sets Exercise Ex. 1.3
Question 1
Solution 1
Question 2
Solution 2
Question 3
Solution 3
Question 4
Solution 4
Question 5
Solution 5
Question 6
Solution 6
Question 7
Solution 7
Question 8
Solution 8
Question 9
Solution 9
Chapter 1 Sets Exercise Ex. 1.4
Question 1
Solution 1
Question 2
Solution 2
Question 3
Solution 3
Question 4(i)
Solution 4(i)
Question 4(ii)
Solution 4(ii)
Question 4(iii)
Solution 4(iii)
Question 4(iv)
Solution 4(iv)
Question 4(v)
Solution 4(v)
Question 4(vi)
Solution 4(vi)
Question 5
Solution 5
Question 6
Solution 6
Question 7
Solution 7
Question 8
Solution 8
Question 9
Solution 9
Question 10
Solution 10
Question 11
Solution 11
Question 12
Solution 12
Question 13
Solution 13
Question 14
Solution 14
Question 15
Solution 15
Question 16
Solution 16
Chapter 1 Sets Exercise Ex. 1.5
Question 1
Solution 1
Question 2(i)
Solution 2(i)
Question 2(ii)
Solution 2(ii)
Question 2(iii)
Solution 2(iii)
Question 2(iv)
Solution 2(iv)
Question 2(v)
Solution 2(v)
Question 2(vi)
Solution 2(vi)
Question 2(vii)
Solution 2(vii)
Question 2(viii)
Solution 2(viii)
Question 2(ix)
Solution 2(ix)
Question 2(x)
Solution 2(x)
Question 3(i)
Solution 3(i)
Question 3(ii)
Solution 3(ii)
Question 3(iii)
Solution 3(iii)
Question 3(iv)
Solution 3(iv)
Question 3(v)
Solution 3(v)
Question 3(vi)
Solution 3(vi)
Question 4
Solution 4
Question 5
Solution 5
Question 6
Solution 6
Chapter 1 Sets Exercise Ex. 1.6
Question 2(i)
Let A = {1, 2, 4, 5} B = {2, 3, 5, 6} C = {4, 5, 6, 7}. Verify the following identities:
A ∪ (B ∩ C) = (A ∪ B) ∩ (A ∪ C)Solution 2(i)
Question 2(ii)
Let A = {1, 2, 4, 5} B = {2, 3, 5, 6} C = {4, 5, 6, 7}. Verify the following identities:
A ∩ (B ∪ C) = (A ∩ B) ∪ (A ∩ C)Solution 2(ii)
Question 2(iii)
Let A = {1, 2, 4, 5} B = {2, 3, 5, 6} C = {4, 5, 6, 7}. Verify the following identities:
A ∩ (B – C) = (A ∩ B) – (A ∩ C)Solution 2(iii)
Question 2(iv)
Let A = {1, 2, 4, 5} B = {2, 3, 5, 6} C = {4, 5, 6, 7}. Verify the following identities:
A – (B ∪ C) = (A – B) ∩ (A – C)Solution 2(iv)
Question 2(v)
Let A = {1, 2, 4, 5} B = {2, 3, 5, 6} C = {4, 5, 6, 7}. Verify the following identities:
A – (B ∩ C) = (A – B) ∪ (A – C)Solution 2(v)
Question 2(vi)
Let A = {1, 2, 4, 5} B = {2, 3, 5, 6} C = {4, 5, 6, 7}. Verify the following identities:
A ∩ (B D C) = (A ∩ B) D (A ∩ C)Solution 2(vi)
Question 4(i)
For any two sets A and B, prove that
B ⊂ A ∪ BSolution 4(i)
Question 4(ii)
For any two sets A and B, prove that
A ∩ B ⊂ BSolution 4(ii)
Question 4(iii)
For any two sets A and B, prove that
A ⊂ B ⇒ A ∩ B = ASolution 4(iii)
Question 14(i)
Show that For any sets A and B,
A = (A ∩ B) ∩ (A – B)Solution 14(i)
Question 14(ii)
Show that For any sets A and B,
A ∪ (B – A) = A ∪ BSolution 14(ii)
Question 15
Each set X, contains 5 elements and each set Y, contains 2 elements and each element of S belongs to exactly 10 of the X’rs and to exactly 4 of Y’rs, then find the value of n.Solution 15
Question 1
Solution 1
Question 3(i)
Solution 3(i)
Question 3(ii)
Solution 3(ii)
Question 5
Solution 5
Question 6(i)
Solution 6(i)
Question 6(ii)
Solution 6(ii)
Question 7
Solution 7
Question 8
Solution 8
Question 9
Solution 9
Question 10
Solution 10
Question 11
Solution 11
Question 12(i)
Solution 12(i)
Question 12(ii)
Solution 12(ii)
Question 13
Solution 13
Chapter 1 Sets Exercise Ex. 1.7
Question 4(i)
For any two sets A and B, prove that
(A ∪ B) – B = A – BSolution 4(i)
Question 4(ii)
For any two sets A and B, prove that
A- (A ∩ B) = A – BSolution 4(ii)
Question 4(iii)
For any two sets A and B, prove that
A – (A – B) = A ∩ BSolution 4(iii)
Question 4(iv)
For any two sets A and B, prove that
A ∪ (B – A) = A ∪ BSolution 4(iv)
Question 4(v)
For any two sets A and B, prove that
(A – B) ∪ (A ∩ B) = ASolution 4(v)
Question 1
Solution 1
Question 2(i)
Solution 2(i)
Question 2(ii)
Solution 2(ii)
Question 2(iii)
Solution 2(iii)
Question 2(iv)
Solution 2(iv)
Question 3
Solution 3
Chapter 1 Sets Exercise Ex. 1.8
Question 1
Solution 1
Question 2
Solution 2
Question 3
Solution 3
Question 4
Solution 4
Question 5(i)
Solution 5(i)
Question 5(ii)
Solution 5(ii)
Question 5(iii)
Solution 5(iii)
Question 6
Solution 6
Question 7
Solution 7
Question 8
Solution 8
Question 9
Solution 9
Question 10
Solution 10
Question 11
Solution 11
Question 12
Solution 12
Question 13
Solution 13
Question 14
Solution 14
Question 15
Solution 15
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