Question

if A = {1, 2,3,4} and B = {1, 2,3,5,6} then find I) AnB ii) BnA iii) A-B and iv) B-A then comment​

Answer 1

AnB={1,2,3}

BnA={1,2,3}

A-B={4}

B-A={5,6}

Answer 2

$\huge\bold{꧁}$ $\huge\underline\pink{ MoonstonE }$

(i) A ∩ B

⟶ A ∩ B = { 1 , 2 , 3 , 4 } ∩ { 1 , 2 , 3 , 5 , 6 }

⟶ A ∩ B = { 1 , 2 , 3 } ☑️

(ii) B ∩ A

⟶ B ∩ A = { 1 , 2 , 3 , 5 , 6 } ∩ { 1 , 2 , 3 , 4 }

⟶ B ∩ A = { 1 , 2 , 3 } ☑️

(iii) A - B

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

⟶ A - B = { 4 } ☑️

(iv) B - A

⟶ B - A = { 1 , 2 , 3 , 5 , 6 } - { 1 , 2 , 3 , 4 }[/tex]

⟶ B - A = { 5 , 6 } ☑️

⭐ A ∩ B and B ∩ A are equal ⭐