Bài1 Tính
\(\sqrt{36}\) \(\sqrt{49}\) \(-\sqrt{49}\) \(\sqrt{\left(-0,02\right)^2}\) \(\sqrt{0,04}\) \(\sqrt{2500}\)
\(\sqrt{72}\) \(\sqrt{12}\) \(\sqrt{8}\) \(\sqrt{27}\) \(\sqrt{63}\) \(\sqrt{28}\) \(\sqrt{54}\) \(\sqrt{48}\) \(\sqrt{24}\)
Bài2 Tìm căn bậc hai của các số sau
3600 4900 10000 0,0001
\(\frac{64}{9}\) \(\frac{81}{25}\) \(\frac{16}{81}\) \(\frac{64}{25}\) \(\frac{100}{36}\) \(\frac{0,64}{81}\) \(\frac{36}{25}\) \(\frac{49}{16}\) \(\frac{121}{25}\) \(\frac{169}{196}\)
Bài 3Tìm x , biết
\(a,4x^2-1=0\) \(b,2x^2+0,82=1\)
\(c,7-\sqrt{x=0}\) \(d,\frac{5}{12}\sqrt{x-\frac{1}{6}}=\frac{1}{3}\) \(e,\sqrt{x+1-2=0}\)
\(f,x^2=81\) \(g,x-2\sqrt{x=0}\) \(h,x=\sqrt{x}\)
tính (-2)^2+\(\sqrt{\left(\frac{36}{49}\right)-\sqrt{16}+\sqrt{\left(\frac{64}{-2}\right)}}\)
Tính
A=\(\sqrt{0,36}-\left(\sqrt{25}-\sqrt{49}:\sqrt{4}\right).\sqrt{0,4}-\sqrt{10}^2\)
Giúp mk với mấy bạn ơi❤️
a, \(\sqrt{64}-\sqrt{16}+\sqrt{\left(-5\right)^2}\) b, \(\sqrt{49}+\sqrt{4}-\sqrt{9}.\sqrt{144}\)
c, \(\sqrt{12}+\sqrt{\left(-5\right)^2}-\sqrt{9}+\sqrt{125}\)
A = \(\sqrt{\frac{1}{9}+\frac{1}{16}}\)
B = \(\sqrt{4+36+81}\)
C = \(\sqrt{1^{3^{ }}+}2^3\)
E = \(\left(\sqrt{\frac{1}{9}+\sqrt{\frac{25}{36}-\sqrt{\frac{49}{81}}:}\sqrt{\frac{441}{324}}}\right)\)
F = \(-4.\sqrt{\frac{1}{16}+3.\sqrt{\frac{1}{9}}-}5.\sqrt{0,04}\)
Mg các bạn giúp mik ạ
Cảm ơn ạ
Tính:\(\left(-\frac{1}{3}+\frac{5}{6}\right)^2-\frac{-\sqrt{25^2}-\sqrt{49^2}}{\sqrt{36^2+\sqrt{38^2}}}\)
Nhớ giải cho thật kĩ!!
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) \(\frac{2}{3}\sqrt{\frac{81}{16}}-\frac{3}{4}\sqrt{\frac{64}{9}}+\frac{7}{5}.\sqrt{\frac{25}{196}}\)
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,\(\sqrt{\left(-7\right)^2-\sqrt{1^{40}}.\sqrt{16}}\)
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) \(\sqrt{\left(-4\right)^2}+\sqrt{\left(-5\right)^2}-\sqrt{\left(-6\right)^2}\)