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Difference of Two Sets

If A = 6, 7, ...

Question

If A = (6, 7, 8, 9), B = (4, 6, 8, 10) and C = { $x$ : $x ϵ N$ : $2 < x \leq 7$ } ; find :
A - B

A

{6, 8}

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B

{7, 9}

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C

{6, 9}

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D

{6, 7, 9, 10}

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Solution

The correct option is B ${7, 9}$
$A - B = A - A \cap B = {7, 9}$

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Similar questions

A = (6, 7, 8, 9), B = (4, 6, 8, 10)

C = {x : x ϵ N : 2 < x \leq 7}

n (B - (A - C))

A = (6, 7, 8, 9), B = (4, 6, 8, 10)

C = {x : x ϵ N : 2 < x \leq 7}

B - (A \cap C)

The sum of the elements in the above set is?

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

B = {3, 4, 5, 6, 7}

C = {6, 7, 8, 9}

D = {7, 8, 9, 10}

$\begin{matrix} C o l u m n A & C o l u m n B 1. A \cup B & a . {3, 4, 6, 7} 2. A \cap B & b . \emptyset 3. (B \cap C) \cup D & c . {3, 4} 4. B \cup C \cup D & d . {3, 4, 5, 6, 7, 8, 9, 10} 5. (A \cap B) \cap (B \cup C) & e . {1, 2, 3, 4, 5, 6, 7} f . {6, 7, 8, 9, 10} g . {7} \end{matrix}$

Simplify:

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

A = {6, 7, 8, 9}, B = {4, 6, 8, 10}

A - B

.

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