Toán Lớp 7: Tính nhanh tổng sau:
F=$\frac{1}{1.1985}$ +$\frac{1}{2.1986}$ +$\frac{1}{3.1987}$ +…+$\frac{1}{16.2000}$
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Toán Lớp 7: Tính nhanh tổng sau:
F=$\frac{1}{1.1985}$ +$\frac{1}{2.1986}$ +$\frac{1}{3.1987}$ +…+$\frac{1}{16.2000}$
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