Question

For the set A=

Answer 1

Answer:

  a)  A = {-3, -2, -1}

  b)  n(A) = 3

  c)  A is finite

Step-by-step explanation:

a) The elements of A are the integers between -4 and 0, not including those values. Those integers are -3, -2, -1, so those are the elements of set A.

  A = {-3, -2, -1}

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b) n(A) is the number of elements in set A. Obviously, there are 3:

  n(A) = 3

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c) Since n(A) is not "infinity", the set A is finite.