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pedomjack
2 năm trước
Tìm giá trị lớn nhất của các biểu thức sau : (Làm hộ em theo cách -dấu “=“ xảy ra khi- với ạ) a, A=30:[(x+2)²+5] b, B=20:[(x-3)²+4] c, C=10:[(x+1)²+2]
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