यदि , ,
, ; तो निम्नलिखित को ज्ञात कीजिए : (i) A – B (ii) A – C (iii) A – D (iv) B – A (v) C – A (vi) D – A (vii) B – C (viii) B – D (ix) C – B (x) D – B (xi) C – D (xii) D – C
Answers
A - B = {3,6,9,12,15,21}
A - C = {3,9,15,18,21}
A - D = {3,6,9,12,18,21}
B - A = {4,8,16,20}
C - A = {2,4,8,10,14,16}
D - A = {3,6,9,12,18,21}
B - C = {20}
C - B = {2, 6,10, 14}
D - B = {5,10,15}
C - D = {2,4,6,8,12,14,16}
D - C = {5, 15, 20}
Answer:
Step-by-step explanation:
(i) A - B = { 3,6,9,12,15,18,21 } - { 4,8,12,16,20 }
= { 3,6,9,15,18,21 }
(ii) A - C = { 3,6,9,12,15,18,21 } - { 2,4,6,8,10,12,14,16 }
= { 3,9,15,18,21 }
(iii) A - D = { 3,6,9,12,15,18,21 } - { 5,10,15,20 }
= { 3,6,9,12,18,21 }
(iv) B - A = { 4,8,12,16,20 } - { 3,6,9,12,15,18,21 }
= { 4,8,16,20 }
(v) C - A = { 2,4,6,8,10,12,14,16 } - { 3,6,9,12,15,18,21 }
= { 2,4,8,10,14,16 }
(vi) D - A = { 5,10,15,20 } - { 3,6,9,12,15,18,21 }
= { 5,10,20 }
(vii) B - C = { 4,8,12,16,20 } - { 2,4,6,8,10,12,14,16 }
= { 20 }
(viii) B - D = { 4,8,12,16,20 } - { 5,10,15,20 }
= { 4,8,12,16 }
(ix) C - B = { 2,4,6,8,10,12,14,16 } - { 4,8,12,16,20 }
= { 2,6,10,14 }
(x) D - B = { 5,10,15,20 } - { 4,8,12,16,20 }
= { 5,10,15 }
(xi) C - D = { 2,4,6,8,10,12,14,16 } - { 5,10,15,20 }
= { 2,4,6,8,12,14,16 }
(xii) D - C = { 5,10,15,20 } - { 2,4,6,8,10,12,14,16 }
= { 5,15,20 }