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lanhuong02052001
2 năm trước
Bài 1 : Tính giá trị biểu thức A=1+$\frac{1}{2}$ . $\frac{3.2}{2}$ + $\frac{1}{3}$ . $\frac{4.3}{2}$ + ... + $\frac{1}{500}$ . $\frac{501.500}{2}$ B=50+$\frac{50}{3}$ + $\frac{25}{3}$ + $\frac{20}{4}$ + $\frac{10}{3}$ + $\frac{100}{6.7}$ + $\frac{100}{7.8}$ + ... + $\frac{100}{98.99}$ + $\frac{1}{99}$ Mn giúp mình với ạ <3
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