\(\left(-2\right)^2+\sqrt{49}-\sqrt{16}+\sqrt{25}\)
\(=4+7-4+5\)
\(=12\)
\(\left(-2\right)^2+\sqrt{49}-\sqrt{16}+\sqrt{25}\)
`=4 + 7 - 4 + 5`
`=12`
a,\(\sqrt{49-\sqrt{4+\sqrt{25}}}\)
b,\(\left(\sqrt{100-\sqrt{1}}\right):\sqrt{\left(-3\right)^2}\)
c,\(\sqrt{16+9-\sqrt{25-9}}\)
d,\(\sqrt{\left(-7\right)^2-\sqrt{1^{40}}.\sqrt{16}}\)
Tính
a) \(2\sqrt{\frac{25}{16}}-3\sqrt{\frac{49}{36}}+4\sqrt{\frac{81}{64}}\)
b) \(\left(3\sqrt{2}\right)^2-\left(4\sqrt{\frac{1}{2}}\right)^2+\frac{1}{16}.\left(\sqrt{\frac{3}{4}}\right)^2\)
c) \(\frac{2}{3}\sqrt{\frac{81}{16}}-\frac{3}{4}\sqrt{\frac{64}{9}}+\frac{7}{5}.\sqrt{\frac{25}{196}}\)
2. a) \(\sqrt{64}-\sqrt{16}+\sqrt{\left(-3^2\right)}\) b) \(\sqrt{121}+\sqrt{\left(-5\right)^2}-\sqrt{9}\)
c) \(\sqrt{\frac{9}{4}}-\sqrt{\frac{16}{36}}-\sqrt{49}\) d) \(\sqrt{\left(-4\right)^2}+\sqrt{\left(-5\right)^2}-\sqrt{\left(-6\right)^2}\)
tính (-2)^2+\(\sqrt{\left(\frac{36}{49}\right)-\sqrt{16}+\sqrt{\left(\frac{64}{-2}\right)}}\)
\(\left(-3\right)^2.\dfrac{1}{3}-\sqrt{49}+\left(-5\right)^3:\sqrt{25}\)
\(\left(-3\right)^2.\dfrac{1}{3}-\sqrt{49}+\left(-5\right)^3:\sqrt{25}\)
\(64.\left(\dfrac{-1}{8}\right)^2+3,5.\sqrt{\dfrac{16}{49}}-\sqrt{49}:4\)
\(Tính:\)
\(a.\sqrt{25}-\sqrt{16}+\sqrt{1}\)
\(b.\sqrt{\frac{4}{9}}+\sqrt{\frac{25}{4}}+\sqrt{\left(-3\right)^4}\)
\(c.\frac{7}{5}+\sqrt{49}+\sqrt{\left(-3\right)^2}\)
\(\sqrt{\frac{25}{4}}+\left(\sqrt{\frac{1}{2}}\right)^2:\left(\frac{-\sqrt{9}}{4}\right).\sqrt{\frac{16}{81}}-4^2-\left(-2\right)^3\)
Tính
A=\(\sqrt{0,36}-\left(\sqrt{25}-\sqrt{49}:\sqrt{4}\right).\sqrt{0,4}-\sqrt{10}^2\)
