3 ≤ x ≤ 4
3 < x < 4
3 ≤ x < 4
3 < x ≤ 4
Correct answer is A
(x - 3)(x - 4) ≤ 0
Case 1 (+, -) = x - 3 ≥ 0, X - 4 ≥ 0
= X ≤ 3, x ≥ 4
= 3 < x ≥ 4 (solution)
Case 2 = (-, +) = x - 3 ≤ 0, x - 4 ≥ 0
= x ≤ 3, x ≥ 4
therefore = 3 ≤ x ≤ 4
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