Các câu hỏi tương tự
Chứng minh: A= 1/3+1/13+1/14+1/15+1/61+1/62+1/63+1/64+1/65+1/66<3/4
Chứng minh
a=1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
chứng minh rằng s=1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
Chứng minh:S=1/3+1/13+1/14+1/15+1/61+1/62+1/63+1/64+1/65+1/66<3/4
chứng minh 1/5+1/13+1/14+1/15+1/61+1/62+1/63 < 1/2
Chứng minh S = 1/5 +1/13+ /14+1/15+1/61+1/62+1/63 < 1/2
chứng minh rằng: S=1/5+1/13+1`/14+1/15+1/61+1/62+1/63<1/2
Chứng minh :
a, S= 1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
b, P = 1/2+1/2^2+...+1/2^20< 1
Chứng minh
S= 1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2