Ta có:
A=100^2015+1/100^2016+1 suy ra 100A=100^2016+100/100^2016+1=100^2016+1+99/100^2016+1=1/99/100^2016+1
Lại có
B=100^2016+1/100^2017+1 suy ra 100B=100^2017+100/100^2017+1=100^2017+1+99/100^2017+1=1/99/100^2017+1
Vì1/99/100^2016+1>1/99/100^2017+1 suy ra A>B
A=\(\frac{100^{2015}+1}{100^{2016}+1}\)
B=\(\frac{100^{2016}+1}{100^{2017}+1}\)
So sánh A và B
so sanh A va B
\(A=\frac{2017^{100}}{1+2017+2017^2+2017^3+...+2017^{100}}\)
\(B=\frac{2016^{100}}{1+2016+2016^2+2016^3+...+2016^{100}}\)
So sánh A và B
\(A=\frac{100^{2015}+1}{100^{2014}+1}\)
\(B=\frac{100^{2016}+1}{100^{2015}+1}\)
Gấp nha!
so sánh
\(\frac{100^{2015^{ }}+1}{100^{2005}+1}\) và\(\frac{100^{2016}+1}{100^{2006}+1}\)
a)Chứng minh rằng: \(\frac{200-\left(3+\frac{2}{3}+\frac{2}{4}+..+\frac{2}{100}\right)}{\frac{1}{2}+\frac{2}{3}+\frac{3}{4}+...+\frac{99}{100}}=2\)
b)\(A=\frac{-21}{10^{2016}}+\frac{-12}{10^{2017}};B=\frac{-12}{10^{2016}}+\frac{-21}{10^{2017}}\)
So sánh A và B
So sanh A va B biet
A=2017^100/1+2017+2017^2+2017^3+.....+2017^100
B=2016^100/1+2016+2016^2+2016^3+.....+2016^100
So sánh
a.
\(A=\frac{10}{50^{10}}+\frac{10}{50^8}\)Và \(B=\frac{11}{50^{10}}+\frac{9}{50^8}\)b. \(A=\frac{2016}{10^{20}}+\frac{2016}{100^{30}}\)Với\(B=\frac{2017}{100^{20}}+\frac{2015}{100^{30}}\)
Mọi người giúp mình nhanh với ạ! Tối nay mình phải nộp bài rồi
a. So sanh 2 phan so:A= 2015/2016+2016/2017+2017/2018 va B = 2015+2016+2017/2016+2017+2018
b.1/2.4+1/4.6+........+1/(2x-2).2x = 1/8
c.Cho A = 1/4+1/9+1/16+...+1/81+1/100 . Chung minh rang : A > 65/132
d.Cho B = 12/(2 . 4 ) ^ 2 + 20/ (4 . 6) ^2 + ...........+ 388/ ( 96 . 98 ) ^ 2 + 396/ ( 98 . 100 ) ^2 .Hay so sanh B voi 1 /4
SO SÁNH:
A=\(\frac{\frac{2016}{1}+\frac{2015}{2}+\frac{2014}{3}+.....+\frac{2}{2015}+\frac{1}{2016}}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+.....+\frac{1}{2016}+\frac{1}{2017}}\)
VÀ
B=2017