-4 ≤ x ≤ 6 và x chia hết cho 2}
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Shipping and Returns Policy
- Deliver to United States » Shipping Policy «
- - Shipping Cost: $5.99
- - Handling time: 2-3 business days
- - Transit time: 7-10 business days
- Eligible for » Returns & Refund Policy « within 30 days from the date of delivery
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viết mỗi tập hợp sau bằng cách liệt kê
- -5, 5
- Liệt kê các màu trong cầu vồng. PP = {x ∈ N
- Liệt kê các số nguyên tố nhỏ hơn 20. R = {x ∈ N*
- Liệt kê các tháng trong năm có 30 ngày. F = {ngày trong tuần bắt đầu bằng chữ "T"}
- -3, 3
- x^2 + 2x + 1 = 0}
- Liệt kê các môn thể thao Olympic mùa hè. GGG = {x ∈ N
- Liệt kê các số hoàn hảo nhỏ hơn 30. HHH = {x ∈ Z
- ... (vô số, ví dụ -2/1, -1/1, 0/1, 1/1, 2/1, -3/2, -1/2, 1/2, 3/2, -4/3, -2/3, 2/3, 4/3, ...)
- x là số nguyên tố có một chữ số}
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