Question

10.if A={1,2,3,4,5} and B=
{3,4,5,6,7}then A-B is *​

Answer 1

Step-by-step explanation:

A={1,2,3,4,5}

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

A-B={1,2}

Answer 2

$\huge\tt\colorbox{lightgreen}{Answer}$

A = {1 , 2 , 3 , 4 , 5}

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

A - B = {1 , 2 , 3 , 4 , 5} - {3 , 4 , 5 , 6 , 7}

A - B = {1 , 2}

Note :

Cancel the common in both sets and write the remaining numbers in 1st set