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sdas [7]
3 years ago
9

If S = {x,y,4,9,?) , which could describe U ?

Mathematics
2 answers:
Mariana [72]3 years ago
6 0

Answer:

keys on a keyboard

Step-by-step explanation:

Blizzard [7]3 years ago
5 0

Answer:- A) U= { keys on a keyboard}


Explanation:-

  • A set is a well defined collection of objects.
  • A Universal set is the set containing all objects and all other sets are subsets of the universal set. It is denoted by 'U'.

Given set : S = {x,y,4,9,?}

Clearly it contains numbers (4,9), alphabets(x,y) and punctuation mark(?).

Thus the universal set of the given set must contain all of them.

Thus U={keys on a keyboard}



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