मान लीजिए कि , , और तो निम्नलिखित ज्ञात कीजिए:
(i)
(ii)
(iii)
(iv)
(v)
(vi)
Answers
Answer:
Step-by-step explanation:
(i) A' = U - A
= { 1,2,3,4,5,6,7,8,9 } - { 1,2,3,4 }
= { 5,6,7,8,9 }
(ii) B' = U - B
= { 1,2,3,4,5,6,7,8,9 } - { 2,4,6,8 }
= { 1,3,5,7,9 }
(iii) (A ∪ C)' = U - ( A ∪ C )
= { 1,2,3,4,5,6,7,8,9 } - [{ 1,2,3,4,5,6,7,8,9 } ∪ { 3,4,5,6 } ]
= { 1,2,3,4,5,6,7,8,9 } - { 1,2,3,4,5,6 }
= { 7,8,9 }
(iv) ( A ∪ B )'
A ∪ B = { 1,2,3,4 } ∪ { 2,4,6,8 }
= { 1,2,3,4,6,8 }
( A ∪ B )' = U - ( A ∪ B )
= { 1,2,3,4,5,6,7,8,9 } - { 1,2,3,4,6,8 }
= { 5,7,9 }
(v) ( A' )' = U - A'
= { 1,2,3,4,5,6,7,8,9 } - { 5,6,7,8,9 }
= { 1,2,3,4 }
(vi) ( B - C )'
∴ B - C = { 2,4,6,8 } - { 3,4,5,6 }
= { 2,8 }
∴ ( B - C )' = U - ( B - C )
= { 1,2,3,4,5,6,7,8,9 } - { 2,8 }
( B - C )' = { 1,3,4,5,6,7,9 }