List all the elements of the following sets:
C = {x : x is an integer, x² ≤ 4}

Question

List all the elements of the following sets: C = {x : x is an integer, x 2 ≤ 4}

Philoid · Accepted Answer

Integers are ……-4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8

x² = 4

x= 2

so

(0)²= 0

(1)² = 1

(2)²= 4

(-2)² = 4

(-1)² =1

The elements of the set are -2, -1, 0, 1, 2

C= {-2, -1, 0, 1, 2}

List all the elements of the following sets:C = {x : x is an integer, x2 ≤ 4}