10^7+8/10^7-8<10^8+8/10^7-8
cho mik nhé
thnks !!!!!!!!!!!!!
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1. So Sánh: \(A=\frac{10^7+5}{10^7-8};B=\frac{10^8+6}{10^8-7}\)
So sánh A và B:
a)A=\(\frac{10^7+5}{10^7-8}\); B=\(\frac{10^8+6}{10^8-7}\)
So sánh A và B biết:
a) \(A=\frac{3}{83}+\frac{7}{84};B=\frac{7}{83}+\frac{3}{84}\)
b) \(A=\frac{10^7+5}{10^7-8};B=\frac{10^8+6}{10^8-7}\)
so sánh
\(\frac{10^8+6}{10^8-7}\)
\(\frac{10^8+6}{10^8-7}\)
26 tháng 11 2016 lúc 20:01
so sánh A và B :a) A frac{20}{39}+frac{22}{27}+frac{18}{43} ; B frac{14}{39}+frac{22}{29}+frac{18}{41}b) A frac{3}{8^3}+frac{7}{8^4} , B frac{7}{8^3}+frac{3}{8^4}c) A frac{10^7+5}{10^7-8} , B frac{10^8+6}{10^8-7}d) A frac{10^{1992}+1}{10^{1991}+1}, B frac{10^{1933}+1}{10^{1992}+1}
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so sánh A và B :
a) A = \(\frac{20}{39}+\frac{22}{27}+\frac{18}{43}\) ; B = \(\frac{14}{39}+\frac{22}{29}+\frac{18}{41}\)
b) A = \(\frac{3}{8^3}+\frac{7}{8^4}\) , B= \(\frac{7}{8^3}+\frac{3}{8^4}\)
c) A = \(\frac{10^7+5}{10^7-8}\) , B = \(\frac{10^8+6}{10^8-7}\)
d) A = \(\frac{10^{1992}+1}{10^{1991}+1}\), B = \(\frac{10^{1933}+1}{10^{1992}+1}\)
So sánh:
M=\(\frac{10^7+5}{10^7-8}\) và N=\(\frac{10^8+6}{10^8-7}\)
So sánh A và B
A=\(\frac{8^9+12}{8^9+7}\)và B=\(\frac{8^{10}+4}{8^{10}-1}\)
So sánh A và B biết:
a) A =\(\frac{10^7+5}{10^7-8}\) B =\(\frac{10^8+6}{10^8-7}\)
B) A =\(\frac{15^{16}-13}{15^{16}+7}\) B = \(\frac{16^{17}-12}{16^{17}+8}\)
bài 1 So sánha)Afrac{3}{8^3}+frac{7}{8^4} ; Bfrac{7}{8^3}+frac{3}{8^4}b)Afrac{10^{1992}+1}{10^{1991}+1};Bfrac{10^{1993}+1}{10^{1992}+1}c)Afrac{10^7+5}{10^4-8};Bfrac{10^8+6}{10^8-7}d)Afrac{1+5+5^2+...+5^9}{1+5+5^2+...+5^8};Bfrac{1+3+3^2+...+3^9}{1+3+3^2+...+3^8}e)Afrac{2011}{2012}+frac{2012}{2013};Bfrac{2011+2012}{2012+2013}
Đọc tiếp
bài 1 So sánh
a)\(A=\frac{3}{8^3}+\frac{7}{8^4}\) ; \(B=\frac{7}{8^3}+\frac{3}{8^4}\)
b)\(A=\frac{10^{1992}+1}{10^{1991}+1};B=\frac{10^{1993}+1}{10^{1992}+1}\)
c)\(A=\frac{10^7+5}{10^4-8};B=\frac{10^8+6}{10^8-7}\)
d)\(A=\frac{1+5+5^2+...+5^9}{1+5+5^2+...+5^8};B=\frac{1+3+3^2+...+3^9}{1+3+3^2+...+3^8}\)
e)\(A=\frac{2011}{2012}+\frac{2012}{2013};B=\frac{2011+2012}{2012+2013}\)