(1 + 1/3) × (1 + 1/8) × (1 + 1/15) × ... × (1 + 1/9999)
= 4/3 × 9/8 × 16/15 × ... × 10000/9999
= 2.2/1.3 × 3.3/2.4 × 4.4/3.5 × ... × 100.100/99.101
= 2.3.4...100/1.2.3...99 × 2.3.4...100/3.4.5...101
= 100 × 2/101
= 200/101
Ủng hộ mk nha ♡_♡
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