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\(-x-\frac{9}{2004}=-\frac{1}{2003}\)
\(\Rightarrow-x=\frac{-1}{2003}+\frac{9}{2004}\)
\(\Rightarrow-x=\frac{-1}{2003}+\frac{9}{2004}\)
\(\frac{5}{9}-x=1-2004\)
\(\Rightarrow\frac{5}{9}-x=-2003\)
\(\Rightarrow x=\frac{5}{9}-\left(-2003\right)\)
\(\Rightarrow x=\frac{18032}{9}\)
a )
\(-x-\frac{9}{2004}=-\frac{1}{2003}\)
\(-x=-\frac{1}{2003}+\frac{9}{2004}\)
Số lớn quá
b ) \(\frac{5}{9}-x=\frac{1}{2004}\)
\(x=\frac{5}{9}-\frac{1}{2004}\)
\(x=\frac{3337}{6012}\)
1)
\(-\left(-0.25\right)-2\frac{1}{5}=\frac{25}{100}-\frac{11}{5}=\frac{1}{4}-\frac{11}{5}=\frac{5}{20}-\frac{44}{20}=-\frac{39}{20}\)\(\frac{-39}{20}\)
Thay \(x=2003\) vào A ta có:\(A=2003^{17}-2004.2003^{16}+2004.2003^{15}-2004.2003^{14}+...+2004.\left(2003-1\right)\)
\(=2003^{17}-\left(2003+1\right).2003^{16}+\left(2003+1\right).2003^{15}-\left(2003+1\right).2003^{14}+...+\left(2003+1\right).\left(2003-1\right)\)
\(=2003^{17}-2003^{17}+2003^{16}-2003^{16}+2003^{15}-2003^{15}+2003^{14}-2003^{14}+...+\left(2003+1\right).\left(2003-1\right)\)
\(=2004.2002=4012008\)
\(\frac{-x-9}{2004}=\frac{-1}{2003}\)
\(\Rightarrow\left(-x-9\right).2003=-2004\)
\(\Rightarrow-x-9=\frac{-2004}{2003}\)
\(\Rightarrow-x=\frac{16023}{2003}\)
\(\Rightarrow x=-\frac{16023}{2003}\)