1717 : 17 = ...............
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\(\frac{1717}{1212}x+\frac{1717}{2020}x+\frac{1717}{3030}x=\frac{17}{6}\)
=>\(\left(\frac{1717}{1212}+\frac{1717}{2020}+\frac{1717}{3030}\right)x=\frac{17}{6}\)
=>\(\frac{17}{6}x=\frac{17}{6}\)
=>x=1
\(\frac{1717}{1212}x+\frac{1717}{2020}x+\frac{1717}{3030}x=\frac{17}{6}\Rightarrow\left(\frac{17}{12}+\frac{17}{20}+\frac{17}{30}\right)x=\frac{17}{6}\Rightarrow\frac{17}{6}x=\frac{17}{6}\Rightarrow x=1\)
Ta có: \(\frac{\frac{3}{7}-\frac{3}{17}+\frac{3}{171}-\frac{3}{1717}}{\frac{9}{7}-\frac{9}{17}+\frac{9}{171}-\frac{9}{1717}}\)= \(\frac{3.\left(\frac{1}{7}-\frac{1}{17}+\frac{1}{171}-\frac{1}{1717}\right)}{9.\left(\frac{1}{7}-\frac{1}{17}+\frac{1}{171}-\frac{1}{1717}\right)}\)=\(\frac{3}{9}=\frac{1}{3}\)
ta có : \(\frac{1717}{1919}=\frac{1717\div101}{1919\div101}=\frac{17}{19}\)
\(\Rightarrow\frac{17}{19}=\frac{1717}{1919}\)
vậy...................
Ta có: \(\frac{1717:101}{1919:101}\)= \(\frac{17}{19}\)suy ra 17/19=1717/1919
\(\left(\frac{151515}{161616}+\frac{17^9}{17^{10}}\right)-\left(\frac{1500}{1600}-\frac{1616}{1717}\right)\)
\(=\left(\frac{15.10101}{16.10101}+\frac{1}{17}\right)-\left(\frac{15.100}{16.100}-\frac{16.101}{17.101}\right)\)
\(=\frac{15}{16}+\frac{1}{17}-\frac{15}{16}+\frac{16}{17}=\frac{1}{17}+\frac{16}{17}=\frac{17}{17}=1\)
là bằng 11 nha ok nha
k cho mình với''
pl xin bạn đó
bằng 101 nha bn
chúc bn học tốt