\(=\left(0,25\cdot4\right)^{100}\cdot4^3=1^{100}\cdot64=64\)
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Tìm x biết :
\(5.\left|\frac{3}{4}-\frac{2}{3}x\right|-3,25=-2\left\{\left(1.25\right)^2-2,5.0,25+\left(-0,25\right)^2\right\}\)
tính hợp lí
a]\(\left|0,25\right|+\left\{(4\times8)\times125-(-0,5)^2\right\}\)
b]\((2,7+\left|-4.4\right|)-\left[(-5,6)-\left|-7,3\right|\right]\)
c]\((-5,44)+4\times(1,25+0,11)\)
d]\([\left|-6,72\right|+\left|-5,27\right|]-(0,72+1,27)\)
giup mình với
a\(\dfrac{-3}{4}x+1=\dfrac{5}{6}\)
b \(\left(2x-3\right).\left(x-5\right)=0\)
c \(\dfrac{1}{2}-|x+1|=0,25\)
Tính \(A=\left(0,25\right)^{-1}.\left(\frac{1}{4}\right)^{-2}.\left(\frac{4}{3}\right)^2.\left(\frac{5}{4}\right)^{-1}.\left(\frac{2}{3}\right)^{-3}\)
D = \(\left(-2\right)^3\times\left(\dfrac{3}{4}-0,25\right):\left(2\dfrac{1}{4}-1\dfrac{1}{6}\right)\)
Tim x
\(\left(-3,25\right):\left(\frac{-1}{3}x\right)=\left(-2\frac{1}{3}\right):\left(-0,25\right)\)
\(\left(-2\right)^3.\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)
\(\left(\dfrac{-9}{13}\right)\left(\dfrac{-4}{5}\right)\)
\(-0,7:\dfrac{3}{2}\)
\(\dfrac{7}{6}.3\dfrac{1}{4}+\dfrac{7}{6}.\left(-0,25\right)\)
So sánh các số x và y, nếu a)xsqrt{961}-left(frac{1}{sqrt{6}}-1right)và ysqrt{1089}-left(frac{1}{sqrt{7}}+1right)b) sqrt{0,01}+sqrt{0,04}+sqrt{0,09}+sqrt{0,16}+...+sqrt{0,81}và ysqrt{20+0,25}c) xleft(1-frac{1}{sqrt{4}}right).left(1-frac{1}{sqrt{16}}right).left(1-frac{1}{sqrt{36}}right).left(1-frac{1}{sqrt{64}}right).left(1-frac{1}{sqrt{100}}right)vàysqrt{0,1}
Đọc tiếp
So sánh các số x và y, nếu
a)\(x=\sqrt{961}-\left(\frac{1}{\sqrt{6}}-1\right)\)và \(y=\sqrt{1089}-\left(\frac{1}{\sqrt{7}}+1\right)\)
b) \(\sqrt{0,01}+\sqrt{0,04}+\sqrt{0,09}+\sqrt{0,16}+...+\sqrt{0,81}\)và \(y=\sqrt{20+0,25}\)
c) \(x=\left(1-\frac{1}{\sqrt{4}}\right).\left(1-\frac{1}{\sqrt{16}}\right).\left(1-\frac{1}{\sqrt{36}}\right).\left(1-\frac{1}{\sqrt{64}}\right).\left(1-\frac{1}{\sqrt{100}}\right)\)và\(y=\sqrt{0,1}\)