Solve the following rational inequalities
1) (x + 2)/(x – 3) < 0
2) (x + 3)/(2 – x) < 0
3) (x - 1)/(x + 3) ≥ -1
4) (x + 2)/(2x - 3) < 1
5) (5 – 2x)/(1 - x) > 4
6) 4/x ≤ x
7) 3/x > 2/(x + 2)
8) x/(x + 6) > 3/x
9) (2x + 4)/(x - 1) ≥ 5
10) (x - 2)/(x + 5) > 2
Answers :
1) Possible values of x : -2 < x < 3
Interval notation : (-2, 3)
2) Possible values of x : x < -3 or x > 2
Interval notation : (-∞, -3) u (2, ∞)
3) Possible values of x : x < -3 or x ≥ -1
Interval notation : (-∞, -3) u [-1, ∞)
4) Possible values of x : x < 3/2 or x > 5
Interval notation : (-∞, 3/2) u (5, ∞)
5) Possible values of x : -1/2 < x < 1
Interval notation : (-1/2, 1)
6) Possible values of x : -2 ≤ x < 0 or x ≥ 2
Interval notation : [-2, 0) u [2, ∞)
7) Possible values of x : -6 < x < -2 or x > 0
Interval notation : (-6, -2) u (0, ∞)
8) Possible values of x : x < -6 or -3 < x < 0 or x > 6
Interval notation : (-∞, -6) u (-3, 0) u (6, ∞)
9) Possible values of x : 1 < x ≤ 3
Interval notation : (1, 3]
10) Possible values of x : -12 < x < -5
Interval notation : (-12, -5).
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