Question

A=(2,3,4,6,8) B=(2,5,6,9) and C=(2,6) then which one is correct
a) AUB =C
b) A-B=C
c) A intersection C =B
d) none of these
plss answer

Answer 1

Answer:

A intersection B is correct answer

because only 2,6 are common in A and B

Answer 2

Answer:

d)None of these

Step-by-step explanation:

A = {2, 3, 4, 6, 8} , B = {2, 5, 6, 9} and C = {2, 6}

We can only solve this problem through trial and error method

a)AUB = C

AUB means a set that contains all elements in A and B.

AUB = {2, 3, 4, 5, 6, 8, 9} is not equal to C = {2, 6}

so, it not option A

b)A - B = C

A difference B means, elements in A that are not in B.

therefore, A - B = {3, 4, 8} is not equal to C = {2, 6}

c)A intersection C = B

A intersection C means a set that contains elements that are common in both A and C

A intersection C = {2, 6} is not equal to B = {2, 5, 6, 9}

Therefore, option D is correct

If option C were A intersection B = C then it would be correct otherwise option D is the correct answer.