Các câu hỏi tương tự
Afrac{15}{34}+frac{7}{21}+frac{9}{34}-1frac{15}{17}+frac{2}{3}B16frac{2}{7}:left(-frac{3}{5}right)-28frac{2}{7}:left(-frac{3}{5}right)C25cdotleft(-frac{1}{3}right)^3+frac{1}{5}-2cdotleft(-frac{1}{2}right)^2-frac{1}{2}Dleft(-2right)^3cdotleft(frac{3}{4}-0,25right):left(2frac{1}{4}-1frac{1}{6}right)E5sqrt{16}-4sqrt{9}+sqrt{25}-0,3sqrt{400}Fleft(-frac{3}{2}right)^2+|-frac{5}{6}|-1frac{1}{2}:6
Đọc tiếp
A=\(\frac{15}{34}+\frac{7}{21}+\frac{9}{34}-1\frac{15}{17}+\frac{2}{3}\)
B=\(16\frac{2}{7}:\left(-\frac{3}{5}\right)-28\frac{2}{7}:\left(-\frac{3}{5}\right)\)
C=\(25\cdot\left(-\frac{1}{3}\right)^3+\frac{1}{5}-2\cdot\left(-\frac{1}{2}\right)^2-\frac{1}{2}\)
D=\(\left(-2\right)^3\cdot\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)
E=\(5\sqrt{16}-4\sqrt{9}+\sqrt{25}-0,3\sqrt{400}\)
F=\(\left(-\frac{3}{2}\right)^2+|-\frac{5}{6}|-1\frac{1}{2}:6\)
C 25.left(-frac{1}{3}right)^3+frac{1}{5}-2.left(-frac{1}{2}right)^2-frac{1}{2}D left(-2right)^3.left(frac{3}{4}-0,25right):left(2frac{1}{4}-1frac{1}{6}right)E 5sqrt{16}-4sqrt{9}+sqrt{25}-0,3sqrt{400}F left(-frac{3}{2}right)+|-frac{5}{6}|-1frac{1}{2}:6G frac{0,5+0,left(3right)-0,1left(6right)}{2,5+1,left(6right)-0,8left(3right)}
Đọc tiếp
C = \(25.\left(-\frac{1}{3}\right)^3+\frac{1}{5}-2.\left(-\frac{1}{2}\right)^2-\frac{1}{2}\)
D = \(\left(-2\right)^3.\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)
E = \(5\sqrt{16}-4\sqrt{9}+\sqrt{25}-0,3\sqrt{400}\)
F =\(\left(-\frac{3}{2}\right)+|-\frac{5}{6}|-1\frac{1}{2}:6\)
G = \(\frac{0,5+0,\left(3\right)-0,1\left(6\right)}{2,5+1,\left(6\right)-0,8\left(3\right)}\)
tínhleft{left[left(2sqrt{2}right)^2:2,4right].left[5,25:left(sqrt{7}right)^2right]right}:left{left[2frac{1}{7}:frac{left(sqrt{5}right)^2}{7}right]:left[2^3:frac{left(2sqrt{2}right)^2}{sqrt{81}}right]right}tìm x,y,xsqrt{left(x-sqrt{2}right)^2}+sqrt{left(y+sqrt{2}right)^2}+left|x+y+zright|0so sánh A và B:Asqrt{225}-frac{1}{sqrt{5}}-1 Bsqrt{196}-frac{1}{sqrt{6}}ai giải đc câu nào thì giải giúp với
Đọc tiếp
tính
\(\left\{\left[\left(2\sqrt{2}\right)^2:2,4\right].\left[5,25:\left(\sqrt{7}\right)^2\right]\right\}:\left\{\left[2\frac{1}{7}:\frac{\left(\sqrt{5}\right)^2}{7}\right]:\left[2^3:\frac{\left(2\sqrt{2}\right)^2}{\sqrt{81}}\right]\right\}\)
tìm x,y,x
\(\sqrt{\left(x-\sqrt{2}\right)^2}+\sqrt{\left(y+\sqrt{2}\right)^2}+\left|x+y+z\right|=0\)
so sánh A và B:
\(A=\sqrt{225}-\frac{1}{\sqrt{5}}-1\) \(B=\sqrt{196}-\frac{1}{\sqrt{6}}\)
ai giải đc câu nào thì giải giúp với
Giúp mik với
Tính
a)\(\frac{2}{3}\sqrt{81}-\left(\frac{-3}{4}\right).\sqrt{\frac{9}{64}}+\left(\frac{\sqrt{2}}{3}\right)^2\)
b)\(\left(-\sqrt{\frac{5}{4}}\right)^2-\sqrt{\frac{9}{4}}:\left(-4,5\right)-\sqrt{\frac{25}{16}}.\sqrt{\frac{64}{9}}\)
c)\(-2^4-\left(-2\right)^2:\left(-\sqrt{\frac{16}{121}}\right)-\left(-\sqrt{\frac{2}{3}}\right)^2:\left(-2\frac{2}{3}\right)\)
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\(y=\sqrt{0,1}\)
a)frac{3}{7}+left(-frac{5}{2}right)+left(-frac{3}{5}right)b)frac{4}{5}-left(-frac{2}{7}right)-frac{7}{10}c)3,5-left(-frac{2}{7}right)d)sqrt{left(-7right)^2}+sqrt{frac{25}{16}}-frac{3}{2}e)sqrt{0,36}.sqrt{frac{25}{16}}+frac{1}{4}f)frac{1}{2}.sqrt{100}-sqrt{frac{1}{16}}+left(frac{1}{3}right)^0g)sqrt{frac{4}{81}}:sqrt{frac{25}{81}}-1frac{2}{5}i)frac{21^9.2^{10}}{14^9.3^8}k)frac{10^{11}.21^{12}}{15^{10}.14^{11}}l)0,5.sqrt{100}-sqrt{frac{1}{4}}
Đọc tiếp
a)
\(\frac{3}{7}+\left(-\frac{5}{2}\right)+\left(-\frac{3}{5}\right)\)
b)
\(\frac{4}{5}-\left(-\frac{2}{7}\right)-\frac{7}{10}\)
c)
\(3,5-\left(-\frac{2}{7}\right)\)
d)
\(\sqrt{\left(-7\right)^2}+\sqrt{\frac{25}{16}}-\frac{3}{2}\)
e)
\(\sqrt{0,36}.\sqrt{\frac{25}{16}}+\frac{1}{4}\)
f)
\(\frac{1}{2}.\sqrt{100}-\sqrt{\frac{1}{16}}+\left(\frac{1}{3}\right)^0\)
g)
\(\sqrt{\frac{4}{81}}:\sqrt{\frac{25}{81}}-1\frac{2}{5}\)
i)
\(\frac{21^9.2^{10}}{14^9.3^8}\)
k)
\(\frac{10^{11}.21^{12}}{15^{10}.14^{11}}\)
l)
\(0,5.\sqrt{100}-\sqrt{\frac{1}{4}}\)
thuc hien phep tinh
\(\left[6-3.\left(-\frac{1}{3}^2\right)+\sqrt{0,25}\right]:\sqrt{0,\left(9\right)}\)
\(\left(\frac{1}{2}\right)^2.\sqrt{16}-3^2.\sqrt{0,01}+\left(2^2\right)^2-\left(0,0\left(6\right)\right)+\frac{13}{30}\)
\(\sqrt{64}+3.\sqrt{ \left(\frac{1}{2}\right)^0}-\frac{\sqrt{16}}{4}+\left(\sqrt{\left(-4\right)^2}:\frac{1}{2}\right).8\)
Tính:
a.\(\left(\frac{2}{25}-1,008\right)\):\(\sqrt{\frac{16}{7}}\):\(\left[\left(3\frac{1}{4}-6\frac{5}{9}\right).2\frac{2}{17}\right]\)
b.\(\left(\sqrt{1\frac{9}{16}-\sqrt{\frac{9}{16}}}\right):5\)