A=\(\frac{10^{901}+1}{10^{902}+1}=\frac{10^{902}+10}{10^{903}+10}\)

1-A=\(\frac{10^{902}.9}{10^{903}+10}\)

1-B=\(\frac{10^{902}.9}{10^{903}+1}\)

\(\frac{10^{902}.9}{10^{903}+10}\)<\(\frac{10^{902}.9}{10^{903}+1}\)\(\Rightarrow A>B\)

bạn có thể ra đề 1 cách cụ thể hơn đc không, tui nhìn vào không hiểu j cả

thay các chữ số a;b;c;d bằng các chữ số thích hợp sao cho:

     1945abcd : abcd + 2011= 4012

8) ((456.11 + 912).37) : 13 . 74

= [(456.11 + 456 . 2).37] : 13 . 74

= [456.(11 + 2).37] : 13 . 74

= 456 . 13 . 37 : 13 . 74

= 456 . 37 : 74

= 456 : ( 74 : 37 )

= 456 : 2 

= 228

9) Ta có:

864 . 48 - 432 . 96 

= 432 . 2 . 48 - 432 . 96

= 432 . 96 - 432 . 96

= 432 . ( 96 - 96 )

= 432 . 0

= 0

\(\Rightarrow\left(864.48-432.96\right):864.48.432\)

\(=0:864.48.432\)

\(=0\)

\(8,\left[\left(456.11+912\right).37\right]:13.74\)

\(=\left[\left(5016+912\right).37\right]:13.74\)

\(=\left(5928.37\right):13.74\)

\(=219336:13.74\)

\(=16872.74\)

\(=1248528\)

\(9,\left(864.48-432.96\right):864.48.432\)

\(=\left(41472-41472\right):864.48.432\)

\(=0:864.48.432\)

\(=0\)

đề là gì bạn ơi

\(\frac{\left(456.11+912\right)37}{13.74}\)

= \(\frac{5928.37}{13.74}\)

= 228

Ta có: \(\frac{\left(456.11+912\right).37}{1374}=\frac{\left(456.11+456.2\right).37}{1374}\)

                                                       \(=\frac{456.\left(11+2\right).37}{1374}=\frac{456.13.37}{1374}=\frac{76.6.13.37}{6.229}=159,633...\)

anh_hung_lang_la đang nói gì đó hả?

gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

a) \(\frac{158\cdot168-168\cdot58}{110}\)

\(=\frac{\left(158-58\right)\cdot168}{110}\)

\(=\frac{100\cdot168}{110}=\frac{16800}{110}=\frac{1680}{11}\)

b) \(\frac{\left(456.11+912\right)\cdot37}{13\cdot74}\)

\(=\frac{456\cdot11+456\cdot2\cdot37}{13\cdot37\cdot2}\)

\(=\frac{456\cdot\left(11+2\right)\cdot37}{\left(13\cdot2\right)\cdot37}\)

\(=\frac{456\cdot13\cdot37}{26\cdot37}=228\)

c) \(\frac{864\cdot48-432\cdot96}{864\cdot48\cdot432}\)

\(=\frac{432\cdot2\cdot48-432\cdot48\cdot2}{432\cdot2\cdot48\cdot432}=0\)

cảm ơn bn nhé!!! ^^

\(\frac{\left(456.11+912\right).37}{13.74}\)

\(=\frac{\left(456.11+456.2\right).37}{13.37.2}\)

\(=\frac{[456.\left(11+2\right).37}{13.37.2}\)

\(=\frac{456.13}{13.2}\)

\(=\frac{456}{2}=228\)