chung minh rang 1/3-2/3^2+3/3^3-4/3^4+....+99/3^99-100/3^100<3/16
cho E=(1/3)+(2/3^2)+...+(100/3^100)Chung minh E<(3/4)
cho a =1/2.3/4.5/6.....99/100 chung minh rang1/15<a<1/10
chung minh 1/3-2/3^2+3/3^3-4/3^4+...+99/3^99-100/3^100<3/16
cho n=1/3-2/3^2+3/3^3-4/3^4+...+99/3^99-100/3^100 . Chung minh n < 3/16
chung minh rằng:
1/3 + 2/32 + 3/33+ 4/34 +........+100/3100 <3/4
chung to :1/3+2/3^3+3/3^3+4/3^4+...+100/3^100<3/4
mong cac ban giup do lam ho minh bai nay
Chung minh rang: \(\frac{1}{3}-\frac{2}{3^2}+\frac{3}{3^3}-\frac{4}{3^4}+....+\frac{99}{3^{99}}-\frac{100}{3^{100}}<\frac{3}{16}\)
chung minh rang : 1 / 2 ^ 2 + 1 / 3 ^ 2 + 1 / 4 ^ 2 + . . . + 1 / 100 ^ 2 < 99 / 100
