Precalculus Examples

A = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)

$A = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)$ ,

B = (7, 8, 9)

$B = (7, 8, 9)$

Step 1

Set up the intersection notation of set

{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

${0, 1, 2, 3, 4, 5, 6, 7, 8, 9}$ and

{7, 8, 9}

${7, 8, 9}$ .

{0, 1, 2, 3, 4, 5, 6, 7, 8, 9} \cap {7, 8, 9}

${0, 1, 2, 3, 4, 5, 6, 7, 8, 9} \cap {7, 8, 9}$

Step 2

The intersection of two sets is the set of elements which are in both sets.

{7, 8, 9}

${7, 8, 9}$

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