Question

20. If A={6,7,8,9) and B=18,10,12) find A AB.​

Answer 1

Answer:

AAB = 6791012 } =

Step-by-step explanation:

Given A =(6,7,8,9),

B={8,10,12}

i)A-B = 678981012 }

= (6,7,9) =

ii)B-A= 810126789 }

= (10,12}

iii) AAB = (A-B)U(B-A)

= (6,7,9}U(10,12} =

= 6791012 }

Therefore,

AAB = 6791012 }