Question

Let a = {101, 202, 303, 404, 505} and b = {101, 404}. what is a ∩ b?

Answer 1

Intersection of sets means the common elements of the sets. It is denoted by ∩.

We have,
a = { 101, 202, 303, 404, 505}
b = {101, 404}

So,
a ∩ b = { 101, 404}

Answer 2

Answer:

$A\cap B$ ={101,404}= B

Explanation:

Given

A = {101,202,303,404,505},

and

B = {101,404}

_________________________

We know that,

If A and B are sets then

$A\cap B$= { x:x€A and x€B }

________________________

$A\cap B$ = {101,202,303,404,505}$\cap${101,404}

$A\cap B$= {101,404}

= B

Therefore,

$A\cap B$ ={101,404}= B

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