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State which of the following statement are true and which are false. Justify your answer. 28 ∈ {y | the sum of the all positive factors of y is 2y} - Mathematics

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प्रश्न

State which of the following statement are true and which are false. Justify your answer.

28 ∈ {y | the sum of the all positive factors of y is 2y}

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

This statement is True.

Explanation:

Since, the sum of positive factors of 28

= 1 + 2 + 4 + 7 + 14 + 28

= 56

= 2(28)

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अध्याय 1: Sets - Solved Examples [पृष्ठ ४]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 11
अध्याय 1 Sets
Solved Examples | Q 2.(ii) | पृष्ठ ४

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