Help mik vs :vv Bài 1 : Thực hiện phép tính1) \(\left(-\frac{2}{3}\right)^2\): \(\frac{1}{3}-\left|-1\frac{1}{2}\right|\)2) \(\left(\frac{1}{2}-\frac{3}{5}\right)^2\)+ \(\frac{2}{3}.\left|\frac{3}{4}-\frac{1}{2}\right|\)+ \(2012^0\)3) \(\left(3^2:\frac{1}{3}\right)+2^3+\frac{1}{2}+\frac{1}{4}-6\)Cần gấp > //...
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Help mik vs :vv
Bài 1 : Thực hiện phép tính
1) \(\left(-\frac{2}{3}\right)^2\): \(\frac{1}{3}-\left|-1\frac{1}{2}\right|\)
2) \(\left(\frac{1}{2}-\frac{3}{5}\right)^2\)+ \(\frac{2}{3}.\left|\frac{3}{4}-\frac{1}{2}\right|\)+ \(2012^0\)
3) \(\left(3^2:\frac{1}{3}\right)+2^3+\frac{1}{2}+\frac{1}{4}-6\)
Cần gấp > // <
a) \(\left(-\frac{2}{3}\right)^2:\frac{1}{3}-\left|-1\frac{1}{2}\right|=\frac{4}{9}:\frac{1}{3}-\frac{3}{2}=\frac{4}{3}-\frac{3}{2}=-\frac{1}{6}\)
b) \(\left(\frac{1}{2}-\frac{3}{5}\right)^2+\frac{2}{3}\left|\frac{3}{4}-\frac{1}{2}\right|+2012^0=\left(-\frac{1}{10}\right)^2+\frac{2}{3},\frac{1}{4}+2012^0\)
\(=\frac{1}{100}+\frac{1}{6}+1=\frac{353}{300}\)
c) \(\left(3^2:\frac{1}{3}\right)+2^3+\frac{1}{2}+\frac{1}{4}-6=3^3+2^3+\frac{3}{4}-6=29\frac{3}{4}\)