If H={1,2,{3,4},5}, which statement is true?
Answer and explanation
Correct answer: {3,4}∈H
Set membership depends on the elements written directly at the outer level. The elements of H are 1, 2, the single set {3,4}, and 5. Therefore {3,4}∈H is true. The numbers 3 and 4 belong to the inner set, not directly to H, and {1,2} is not listed as one element. Hence option B is the only correct statement.
Frequently asked questions
What is the correct answer to this question?
{3,4}∈H
Why is this the correct answer?
Set membership depends on the elements written directly at the outer level. The elements of H are 1, 2, the single set {3,4}, and 5. Therefore {3,4}∈H is true. The numbers 3 and 4 belong to the inner set, not directly to H, and {1,2} is not listed as one element. Hence option B is the only correct statement.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems.
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