Let I = R, a = {x | X & # 178; - X-6 ＜ 0}, B = {x | x-a ＞ 0} when a is what value, a ∪ B = {x | x ＞ - 2} The answer is: - 2 ≤ a < 3 or - 2 < a ≤ 3

Let I = R, a = {x | X & # 178; - X-6 ＜ 0}, B = {x | x-a ＞ 0} when a is what value, a ∪ B = {x | x ＞ - 2} The answer is: - 2 ≤ a < 3 or - 2 < a ≤ 3

A solution gives x (- 2,3)
The solution of B is x (a, + ∞)
Let a + B = (- 2, + ∞), then a should satisfy (- 2,3)

Elden Ring Premiere

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