cho A=1+1\2+1\3+...+1\4026,B=1+1\3+1\5+...+1\4025.So sánh A\B và 1\2013\2014
Cho A = 1 + 1/2 + 1/3 + 1/4 +...+ 1/4026, B = 1 + 1/3 + 1/5 + 1/7 +...+ 1/4025 So sánh A/B với 1 + 2013/2014
Cho A = 1+1/2+1/3+1/4+.....+1/4026 B= 1+1/3+1/5+1/7+....+1/4025. So sánh A/B với 1+2013/2014
@tran trung hieu ban lam dc chx
Cho A=1+1/2+1/3+1/4+…+1/4026, B=1+1/3+1/5+1/7+…+1/4025. So sánh A/B với 1+2013/2014
Cho A = 1+1/2+1/3+1/4+.....+1/4026 B= 1+1/3+1/5+1/7+....+1/4025
So sánh A với 1+2013/2014
Cho \(A=1+\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{4}+...+\dfrac{1}{4026}\)và \(B=1+\dfrac{1}{3}+\dfrac{1}{5}+\dfrac{1}{7}+...+\dfrac{1}{4025}\)So sánh với \(1\dfrac{2013}{2014}\)
Bạn thiếu đề rồi phải là trừ hay cộng j j chứ.
Xét:
`A+B=2+1/2+1/3+1/4+......+1/4026+1/3+1/5+1/7+......+1/4025`
`1/2+1/3+1/4+......+1/4026+1/3+1/5+1/7+......+1/4025>0`
`=>A+B>2`
Mà `1 2013/2014<2`
`=>A+B>1 2013/2014`
7cho A = 1+1/2+1/3+1/4+...+1/4026, B= 1+1/3+1/5+1/7+..+1/4025 . So sánh A/B với 1\(\frac{2013}{2014}\)
cho A=1+1/2+1/3+1/4+......+1/4026, B=1+1/3+1/5+1/7+...+1/4025 so sanh a/b voi1+2013/2014
cho A=1+1/2+1/3+1/4+......+.1/4026, B=1+1/3+1/5+1/7+......+1/4025.so sánh A/B với 1\(\frac{2013}{2014}\)
ai dung cho k