Chứng minh rằng các biểu thức sau đây đều có giá trị dương;
x^2-4x+10...
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Mathematics, 09.09.2021 19:20 arod20061
Chứng minh rằng các biểu thức sau đây đều có giá trị dương;
x^2-4x+10
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Answers: 3
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