ection – A
1 Select and write the most appropriate answer from given alternatives
) If A = {2, 3, 4, 5, 6} then which of

1 thought on “ection – A<br />1 Select and write the most appropriate answer from given alternatives<br />) If A = {2, 3, 4, 5, 6} then which of”

1. Step-by-step explanation:

   False

   Let A={1,2} and B={1,{1,2},{3}}

   2∈{1,2} and {1,2}∈{{3},1,{1,2}}

   Now,

   ∴A∈B

   However, 2∈{{3},1,{1,2}}

   (ii) False.

   As A⊂B, B∈C

   Let A={2},B={0,2}, and C={1,{0,2},3}

   However, A∈C

   (iii) True

   Let A⊂B and B⊂C.

   Let x∈A

   ⇒x∈B [∵A⊂B]

   ⇒x∈C

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