Question

1.If A= {x:X<_6}, then find the elements of set A when the universal set is 'Z'

Answer 1

Answer:

(-∞,5]

Step-by-step explanation:

The question is asking about the elements in the universal set Z (i.e. integers) where x is less than 6.

Therefore we need to find all the integers which are less than 6.

Hence the answer will be (-∞,5]

Here the round bracket '(' means that the left hand side of this set is open and not included whereas the square bracket ']' denotes it is closed and the right hand element is to be included.

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