A = {x: |x| < 15/4, x ∈ Z} is A is:

Question

MCQ (Single)Definition of Set in MathematicsRoster Form and Set-Builder Form

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Write the solution set of the equation x² + x – 2 = 0 in roster form.

Write the set {x : x is a positive integer and x² < 40} in the roster form.

Write the set A = {1, 4, 9, 16, 25, . . . } in set-builder form.

TextRoster Form and Set-Builder Form

Write the set {1/2, 2/3, 3/4, 4/5, 5/6, 6/7} in the set-builder form.

Match each of the set on the left described in the roster form with the same set on the right described in the set-builder form :

Which of the following are sets ? Justify your answer.