Toán Lớp 7: Cho A=1/1.2 +1/3.4 +… +1/99.100
B=2/51.100 +2/52.99 +2/53.98 +… +2/75.76
Tính A/B.
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Toán Lớp 7: Cho A=1/1.2 +1/3.4 +… +1/99.100
B=2/51.100 +2/52.99 +2/53.98 +… +2/75.76
Tính A/B.
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