cho A=1/2-1/3+1/4-1/5+……+1/98-1/99 chứng tỏ rằng 1/5 10/08/2021 Bởi Maria cho A=1/2-1/3+1/4-1/5+……+1/98-1/99 chứng tỏ rằng 1/5 { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { "@type": "Question", "name": " cho A=1/2-1/3+1/4-1/5+......+1/98-1/99 chứng tỏ rằng 1/5
A=1/2-1/3+1/4-1/5+…1/98-1/99 =/6+1/20+…+1/902 =1/2.3+1/4.5+…+1/98.99 =1/22-1/99 =97/189=1/5 Bình luận
A=1/2-1/3+1/4-1/5+…1/98-1/99
=/6+1/20+…+1/902
=1/2.3+1/4.5+…+1/98.99
=1/22-1/99
=97/189=1/5