Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
(-2)3 . (\(\frac{3}{4}\) - 0,25) : (\(\frac{9}{4}-\frac{7}{6}\))
= -8 . \(\frac{1}{2}\) : \(\frac{13}{12}\)
= -4 : \(\frac{13}{12}\)
= \(-\frac{48}{13}\)
\(\left(-2\right)^3.\left(\frac{3}{4}-0,25\right):\left(\frac{2}{\frac{1}{4}}-\frac{1}{\frac{1}{6}}\right)\)
\(=-2^3.\frac{\frac{3}{4}-0,25}{\frac{2}{\frac{1}{4}}-\frac{1}{\frac{1}{6}}}\)
\(=-2^3.\frac{\frac{3}{4}-0,25}{2}\)
\(=-\frac{\left(\frac{3}{4}-0,25\right).2^3}{2}\)
\(=-2^2.\left(\frac{3}{4}-0,25\right)\)
= -4.0,5
= -2
\(\left(-2\right)^3.\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)
\(=\left(-8\right).\frac{1}{2}:\frac{13}{12}\)
\(=\frac{-48}{13}\)
\(\left[0,25\right]^8=\left[\left(0,5\right)^2\right]^8=\left(0,5\right)^{16}\)
\(\left(0,125\right)^4=\left[\left(0,5\right)^3\right]^4=\left(0,5\right)^{12}\)
\(0,25.1\frac{3}{5}.\left(\frac{-5}{4}\right)^2:\left(\frac{-4}{7}\right)\)
\(=\frac{1}{4}.\frac{8}{5}.\frac{-5}{4}.\frac{-7}{4}\)
\(=\frac{1.8.\left(-5\right).\left(-7\right)}{4.5.4.4}\)
\(=\frac{280}{320}=\frac{7}{8}\)
\(\left(3\frac{2}{3}-2\frac{2}{5}\right).\left(\frac{-5}{3}\right)+3\left(2\frac{1}{2}:\frac{1}{2}\right)\)
\(=\left(\frac{17}{5}-\frac{12}{5}\right).\frac{-5}{3}+3\left(\frac{5}{2}.\frac{2}{1}\right)\)
\(=\frac{17-12}{5}.\frac{-5}{3}+3\left(\frac{5.2}{2.1}\right)\)
\(=1.\frac{-5}{3}+3.5\)
\(=\frac{-5}{3}+15\)
\(=\frac{-5+45}{3}\)
\(=\frac{40}{3}\)