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\(4.\left(\frac{1}{4}\right)^2+25\left[\left(\frac{3}{4}\right)^3:\left(\frac{5}{4}\right)^3\right]:\left(\frac{3}{2}\right)^3=4.\frac{1}{16}+25\left(\frac{27}{64}.\frac{64}{125}\right).\frac{8}{27}\)
\(=\frac{1}{4}+25.\frac{27}{125}.\frac{8}{27}=\frac{1}{4}+\frac{8}{5}=\frac{37}{20}\)
\(2^3+3\left(\frac{1}{2}\right)^0-1+\left[\left(-2\right)^2:\frac{1}{2}\right]-8=8+3-1+4.2-8=10\)
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\(=\left(\frac{1}{2}+\frac{1}{3}\right):\left(\frac{1}{2}-\frac{1}{3}\right)+\left(\frac{1}{2}.1\right):2^3\)
\(=\frac{5}{6}:\frac{1}{6}+\frac{1}{2}:8\)
\(=5+\frac{1}{16}\)
\(=\frac{81}{16}\)
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+) \(40\div\left\{\left[11+\left(26-27\right)\right]\times2\right\}\)
\(=40\div\left(10\times2\right)=2\)
+) \(\left|\frac{3}{5}\right|\times4\frac{1}{7}+\left|\frac{-6}{7}\right|\times\frac{3}{5}\)
\(=\frac{3}{5}\times\frac{29}{7}+\frac{6}{7}\times\frac{3}{5}=\frac{3}{5}\times\left(\frac{29}{7}+\frac{6}{7}\right)=\frac{3}{5}\times5=3\)
\(=\left(4\times2^5\right):\left(\frac{8.1}{16}\right)=128:\frac{1}{2}=256\)