Question 1179123: Consider the set {1, 2, 3, 4, 5, 6, 7, 8, 9}, where,
A := {1, 3, 5, 7, 9}, B := {2, 4, 6, 8}, C := {3, 5}, D := {2, 4, 6, 8}.
Derive the cardinal for A'
. Hence, determine n(A'
).
Answer by MathLover1(20849)   (Show Source):
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Consider the set {1, 2, 3, 4, 5, 6, 7, 8, 9}, where,
A := {1, 3, 5, 7, 9},
B := {2, 4, 6, 8},
C := {3, 5},
D := {2, 4, 6, 8}.
Derive the cardinal for A'
The complement of a set A contains everything that is not in the set A.
A' all elements of the set {1, 2, 3, 4, 5, 6, 7, 8, 9} except A := {1, 3, 5, 7, 9}
A'={2, 4, 6, 8}
Hence, n(A')=4
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