Các câu hỏi tương tự
Cho tích :A=1/2x3/4x5/6x7/8x...x79/80 .CMR A <1/9
Tính: 1/2x3/4x5/6x7/8x...x79/80 .CMR A
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A=1/2x3/4x5/6x7/8x...x79/80 .CMR A <1/9
Cho C= 1/2x3/4x5/6x....x199/200. Chứng Mjnh C2<1/201
cho S=1/2x3/4x5/6x........x199/200
chứng tỏ rằng S^2 <1/200
Cho: A = 1/2x3/4x5/6x.......x99/100
B = 2/3x4/5x5/6x7/8x....100/101
a/ CM A< B
b/CM : A<1
1/2x3+1/3x4+1/4x5+1/5x6+1/6x7+.....+1/11x12
cho S = 1/2x3+1/4x5+1/6x7+....+1/2020x2021+1/2022x2023
So sánh S với 1011/2023
So sánh A=1/2x3+1/4x5+1/6x7+.....+1/18.19 và B=9/19