\(\frac{1}{2}.\sqrt{144}+\sqrt{\frac{1}{9}}\\ =\frac{1}{2}.12+\frac{1}{3}\\ =6+\frac{1}{3}\\ =\frac{19}{3}\)
\(\frac{1}{2}.\sqrt{144}+\sqrt{\frac{1}{9}}\)
\(=\frac{1}{2}.12+\frac{1}{3}\)
\(=6+\frac{1}{3}\)
\(=\frac{19}{3}.\)
Chúc bạn học tốt!
\(\frac{1}{2}.\sqrt{144}+\sqrt{\frac{1}{9}}\\ =\frac{1}{2}.12+\frac{1}{3}\\ =6+\frac{1}{3}\\ =\frac{19}{3}\)
\(\frac{1}{2}.\sqrt{144}+\sqrt{\frac{1}{9}}\)
\(=\frac{1}{2}.12+\frac{1}{3}\)
\(=6+\frac{1}{3}\)
\(=\frac{19}{3}.\)
Chúc bạn học tốt!
Tìm y :
\(\left|y=\frac{1}{3}\right|-\sqrt{\frac{1}{16}}=\sqrt{\frac{1}{9}}\)
\(\left(\frac{1}{2}\right)^2+\left(-\frac{3}{4}\right)-\frac{\sqrt{9}}{12}\)
Bài 1:Thực hiện phép tính:
1,\(\frac{11}{24}-\frac{5}{41}+\frac{13}{24}+0,5-\frac{36}{41}\)
2,\(-12:(\frac{3}{4}-\frac{5}{6})^2\)
3,\(\frac{7}{23}.[(-\begin{matrix}8\\6\end{matrix})-\frac{45}{18}]\)
4,\(23\frac{1}{4}.\frac{7}{5}-13\frac{1}{4}:\frac{5}{7}\)
5,\((1+\frac{2}{3}-\frac{1}{4})(0,8-\frac{3}{4})^2\)
6,\(16\frac{2}{7}:(\frac{-3}{5})+28\frac{2}{7}:\frac{3}{5}\)
7,\((2^2:\frac{4}{3}-\frac{1}{2}).\frac{6}{5}-17\)
8,\((\frac{1}{3})^{50}.\left(-9\right)^{25}-\frac{2}{3}:4\)
9,\(\frac{3}{5}:(\frac{-1}{15}-\frac{1}{6})+\frac{3}{5}:(\frac{-1}{3}-1\frac{1}{15})\)
10,\(\left(-6,5\right).5,7+5,7.\left(-3,5\right)\)
11,\(10.\sqrt{0,01.\frac{16}{9}+3\sqrt{49}-\frac{1}{6}\sqrt{ }4}\)
12,\(\frac{2^4.2^6}{\left(2^5\right)^2}-\frac{2^5.15^3}{6^3.10^2}\)
Tìm x: \(\sqrt{\frac{x+1}{2}}=\frac{\sqrt{5}}{2}\)
So sánh :1. \(\sqrt{26+3}\)và \(\sqrt{63}\)
2.\(\frac{1}{2}\)và \(\sqrt{\frac{3-1}{2}}\)
Câu 1 : Thực hiện phép tính :
a) 3,5 + \(\sqrt{\frac{49}{25}-}\sqrt{0,36}\)
Câu 2 : Tìm x, biết :
a) \(\frac{4}{9}\): (x + 0,4)=\(\frac{2}{3}\)
Bài 3 : Tìm x,y biết : 4x=5y và x+y =18
Bài 4 : Thực hiện phép tính :
\(\frac{3}{5}\) - \(\frac{3}{5}\) (\(\frac{4}{3}\)-\(\left(\frac{1}{2}\right)^2\)
\(\sqrt{\frac{9}{100}}\) - \(\sqrt{0,25}+12\)
Bài 5 : Tìm x, biết :
a) \(1\frac{2}{5}\) : \(\left(\frac{2}{3}+x\right)\) = \(\frac{7}{3}\)
Ai giúp mik với mik đang vội !!! Còn 30 phút nữa thôi
\(\sqrt{\left(-7^2\right)}+\sqrt{\frac{25}{16}}-\frac{3}{2}\)
a,\(\sqrt{1}+\sqrt{9}+\sqrt{25}+\sqrt{49}+\sqrt{81}\) c\(\sqrt{0,04}+\sqrt{0,09}+\sqrt{0,16}\)
b,\(\sqrt{\dfrac{1}{4}}+\sqrt{\dfrac{1}{9}}+\sqrt{\dfrac{1}{36}}+\sqrt{\dfrac{1}{16}}\) e\(\sqrt{2^2}+\sqrt{4^2}+\sqrt{\left(-6^2\right)}+\sqrt{\left(-8^2\right)}\)
j,\(\sqrt{1,44}-\sqrt{1,69}+\sqrt{1,96}\)
g, \(\sqrt{\dfrac{4}{25}}+\sqrt{\dfrac{25}{4}}+\sqrt{\dfrac{81}{100}}+\sqrt{\dfrac{9}{16}}\)
d\(\sqrt{81}-\sqrt{64}+\sqrt{49}\)
a, Cho P = \(\frac{1}{2}\) + \(\sqrt{x}\) . Tìm GTLN của P
b, Cho Q = 5 - \(2\sqrt{x-1}\) . Tìm GTLN của Q