Let A = {1, 2, {3, 4}, 5}. Which of the following is true?(a) {3, 4} ⊂ A(b) {3, 4} ∈ A(c) {{3, 4}} ⊂ A(d) {1, 2, 5} ⊂ AThe question was asked during an online interview.My enquiry is from Subsets in portion Sets of Mathematics – Class 11

Let A = {1, 2, {3, 4}, 5}. Which of the following is true?(a) {3, 4} �

1.	Let A = {1, 2, {3, 4}, 5}. Which of the following is true?(a) {3, 4} ⊂ A(b) {3, 4} ∈ A(c) {{3, 4}} ⊂ A(d) {1, 2, 5} ⊂ AThe question was asked during an online interview.My enquiry is from Subsets in portion Sets of Mathematics – Class 11
Answer» The correct choice is (a) {3, 4} ⊂ A To EXPLAIN: Here A has ELEMENTS 1,2, {3,4} and 5. So, {3, 4} ∈ A and {{3, 4}} ⊂ A.{1, 2, 5} ⊂ A. {3, 4} is not SUBSET of A.

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Let A = {1, 2, {3, 4}, 5}. Which of the following is true?(a) {3, 4} ⊂ A(b) {3, 4} ∈ A(c) {{3, 4}} ⊂ A(d) {1, 2, 5} ⊂ AThe question was asked during an online interview.My enquiry is from Subsets in portion Sets of Mathematics – Class 11

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