C={x:x is a perfect square number , 40 is less than x and grater than 50. it is empty set or not​

Question

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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Sadie 1 week 2021-09-13T22:47:46+00:00 2 Answers 0 views 0

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    0
    2021-09-13T22:49:02+00:00

    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.
    0
    2021-09-13T22:49:45+00:00

    Answer:

    no it is not an empty set because it (49)

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