C={x:x is a perfect square number , 40 is less than x and grater than 50. it is empty set or not
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Answer:
no it is not an empty set because it (49)
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Answer :
Perfect square numbers are numbers whose square roots are whole numbers. Like : √4 = 2, √9 = 3, etc.
Now, A number between 40 and 50, which is a perfect square number is 49, because √49 = 7.
Hence, C = {x : x is a perfect square number , x is less than 40 and grater than 50} = {49}.
Hence, The set is not empty.
More information -
- Empty set is a set which has no elements.
- Equal sets are sets which have same number of elements and same elements.
- Equivalent sets are sets which have same number of elements.
- Cardinality refers to the number of elements in a set.
- Singleton set is a set with one element.
- Finite set is a set with finite number of elements.
- Infinite set is a set with infinite number of elements.
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