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Ai bít giải chi tiết ra hk ạ????
Giúp e với !!!!!!Làm ơn làm phước, đúng e k cho mak TTTTTTTTT
\(=\dfrac{\left[\left(10.4+8.1\right)^2-6.5^2\right]:0.025}{576-336}+25+\dfrac{4}{3}-\dfrac{4}{3}\)
\(=\dfrac{3000}{240}+25=\dfrac{25}{2}+25=37.5\)
\(=\frac{-\frac{1}{8}-\frac{27}{64}.4}{-2+\frac{9}{16}-\frac{3}{8}}\)
\(=\frac{-\frac{1}{8}-\frac{27}{16.4}.4}{-2+\frac{9-6}{16}}\)
\(=\frac{-\frac{1}{8}-\frac{27}{16}}{-2+\frac{3}{16}}\)
\(=\frac{-\left(\frac{2+27}{16}\right)}{\frac{-32+3}{16}}\)
\(=\frac{-\frac{29}{16}}{\frac{-29}{16}}\)
\(=1\)
Phan Hoàng Mai
Tính :
\(\left(-0,5-\frac{3}{5}\right):\left(-\frac{22}{25}\right)+\left(\frac{2}{25}-1,08\right).\frac{3}{8}-72:12^2\)
\(=\left(-\frac{5}{10}-\frac{3}{5}\right):\frac{-22}{25}+\left(\frac{2}{25}-\frac{108}{100}\right).\frac{3}{8}-72:144\)
\(=\left(-\frac{5}{10}-\frac{6}{10}\right).\frac{-25}{22}+\left(\frac{8}{100}-\frac{108}{100}\right).\frac{3}{8}-\frac{1}{2}\)
\(=\frac{-11}{10}.\frac{-25}{22}+\left(-1\right).\frac{3}{8}-\frac{1}{2}\)
\(=\frac{\left(-11\right).\left(-25\right)}{10.22}+\frac{-3}{8}-\frac{1}{2}\)
\(=\frac{5}{4}+\frac{-3}{8}-\frac{1}{2}\)
\(=\frac{10}{8}+\frac{-3}{8}-\frac{4}{8}\)
\(=\frac{3}{8}\)
Chúc bạn học tốt!!!
\(\left(-0,5-\frac{3}{5}\right):\left(-\frac{22}{25}\right)+\left(\frac{2}{25}-1,08\right)\cdot\frac{3}{8}-72:12^2\)
=\(\left(-\frac{1}{2}-\frac{3}{5}\right):\left(-\frac{22}{25}\right)+\left(\frac{2}{25}-\frac{27}{25}\right)\cdot\frac{3}{8}-\frac{72}{144}\)
=\(\left(-\frac{11}{10}.\left(-\frac{25}{22}\right)\right)-1\cdot\frac{3}{8}-\frac{1}{2}\)
= \(\frac{5}{4}-\frac{3}{8}-\frac{1}{2}\)
= \(\frac{10}{8}-\frac{3}{8}-\frac{4}{8}=\frac{3}{8}\)
\(\frac{\left[\left(5,2^2:2,6+8,1\right)^2-6,5^2\right]:0,025}{\left(60,192:2,4-1,08\right)^2-0,24.140}\)
\(=\frac{\left[\left(27,04:2,6+8,1\right)^2-42,25\right]:0,025}{\left(25,08-1,08\right)^2-336}\)
\(=\frac{\left[\left(10,4+8,1\right)^2-42,25\right]:0,025}{24^2-336}\)
\(=\frac{\left(18,5^2-42,25\right):0,025}{576-336}\)
\(=\frac{\left(342,25-42,25\right):0,025}{240}\)
\(=\frac{300:0,025}{240}=\frac{12000}{240}=50\)