Question

Let A=(1,2,3,4) and A-B=(3,4) then find AnB​

Answer 1

Answer:

A=(1,2,3,4)

B=(1,2)

AnB=(1,2)

hope this will help you

Answer 2

$Given \: A = \{ 1,2,3,4 \} \: and \: A- B = \{ 3,4 \}$

$\red{ A \cap B } = A - ( A- B ) \\= \{1,2,3,4 \} - \{ 3,4 \} \\= \{ 1 , 2 \}$

Therefore.,

$\red{ A \cap B } \green { = \{ 1 , 2 \}}$

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