Question

answer both the question 1 and 2​

Answer 1

Answer:

1}option b is correct that is {2,3}✔✔

2}option a is correct that is {1}✔✔

Step-by-step explanation:

1) SOLUTION-

□A={1,2,3,4}

□B={2,3,a,b}

=)A n B={1,2,3,4}n{2,3,a,b}

={2,3}✔✔

2}SOLUTION-

□X={1,2,3,4}

□Y={1,6,7,8}

=)X n Y={1,2,3,4}n{1,6,7,8}

={1}✔✔

I HOPE IT HELP YOU

Answer 2

${\bold{\underline{\underline{Answer:}}}}$

${\bold{\therefore A\cap B=[2,3]}}$

${\bold{\therefore X\cap Y=[1]}}$

${\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\underline \bold{Given : } \\ \implies A = (1,2,3,4) \\ \\ \implies B = (2,3,a,b) \\ \\ \underline \bold{To \: Find : } \\ \implies A \cap B = ? \\ \\ \cap = This \: sign \: nam ed \: as \: intersection. \\ it \: used \: to \: find \: common \: sets \: in \: two \: or \: more \: than \: two \\ sets \: of \: elements. \\ \\ \implies A \cap B= (1,2,3,4) \cap (2,3,a,b)$

$\\ \implies A \cap B = [2,3] \\ \\ In \: above \: sets \: of \: elements \: 2 \: and \: 3 \: \\ are \: the \: common \:elements \: in \: both \: \\ the \: sets \: so \: A \cap B \: is \: [2.3].$

$\underline \bold{Given : } \\ \implies X = (1,2,3,4) \\ \\ \implies Y= (1,6,7,8) \\ \\ \underline \bold{To \: Find : } \\ \implies A \cap B = ? \\ \\ \cap = This \: sign \: nam ed \: as \: intersection. \\ it \: used \: to \: find \: common \: sets \: in \: two \: or \: more \: than \: two \\ sets \: of \: elements. \\ \\ \implies X \cap Y= (1,2,3,4) \cap (1,6,7,8)$

$\\ \implies X\cap Y= [1] \\ \\ In \: above \: sets \: of \: elements \: 1 \\ is \: the \: common \:elements \: in \: both \: \\ the \: sets \: so \: X\cap Y \: is \: [1].$