Tính B= 3/1.2.3 +3/2.3.4+3/3.4.5+3/4.5.6+3/5.67+.....+3/98.99.100 Mình cần gấp ạ

2024-12-11 02:34:55

Tính B= 3/1.2.3 +3/2.3.4+3/3.4.5+3/4.5.6+3/5.6

7+.....+3/98.99.100

Mình cần gấp ạ

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