If A -3-6-9-12- B -2-4-6-8-10 and C -4-8- then n A - B - A - C is

(A× B) ∪ (A × C) nbsp;= A × (B ∪ C) nbsp;= {3, 6, 9, 12}×{2, 4, 6, 8, 10} nbsp;∴ n ((A× B) ∪ (A × C)) = 4 × 5 = 20 ...

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Number of Elements in a Cartesian Product

If A =3,6,9,1...

Question

If $A = {3, 6, 9, 12}, B = {2, 4, 6, 8, 10}$ and $C = {4, 8},$ then $n ((A \times B) \cup (A \times C))$ is

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A = {1, 2, 3, 4, 5, 6}, B = {3, 6, 9, 12}, C = {6, 12, 18, 20}

n {(A \times B) \cap (A \times C)} =

A = {1, 2, 3, 4, 5, 6}, B = {3, 6, 9, 12}, C = {6, 12, 18, 20}

n {(A \times B) \cap (A \times C)} =

A = {1, 2, 3, 4},

B = {4, 5, 6, 7},

C = {3, 6, 9, 12}

D = {4, 8, 12, 16, 20},

n [(A \times B) \cap (C \times D)]

A = {2, 4, 6, 8, . . .}

B = {3, 6, 9, 12, . . .}

n (A) = 200, n (B) = 250

If universal set U = {1, 2, 3, 4, 5, 6,7, 8, 9, 10}, A = {2, 4, 6, 8}, then A^c is:

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