a) \(\sqrt{\left(-5\right)^2}+\sqrt{5^2}-\sqrt{\left(-3\right)^2}-\sqrt{3^2}-\left(\sqrt{7}\right)^2=\sqrt{25}+\sqrt{25}-\sqrt{9}-\sqrt{9}\)
\(=5+5-3-3\)
\(=4\)
c) \(\sqrt{\left(-10\right)^2}+10.\left(-\sqrt{5}\right)^2=\sqrt{100}+10.5\)
\(=10+10.5\)
\(=10+50\)
\(=60\)
Học tốt nha^^
a, \(\sqrt{\left(-5\right)^2}+\sqrt{5^2}-\sqrt{\left(-3\right)^2}-\sqrt{3^2}-\left(\sqrt{7}\right)^2=5+5-3-3-7=-4\)
b, \(\left[\sqrt{4^2}\right]+\sqrt{\left(-4\right)^2}.\left(\sqrt{5}\right)^2-\sqrt{5^{-2}}\)
\(=4+4.5-\sqrt{\frac{1}{25}}=4+20-\frac{1}{5}=\frac{119}{5}\)
c, \(\sqrt{\left(-10\right)^2}+10.\left(-\sqrt{5}\right)^2=10+10.5=10+50=60\)
mk làm tắt nhe
a)\(5+5-3-3-7=-3\)
b)\(4+4.5-\frac{1}{5}=\frac{119}{5}\)
c)\(10+10.5=60\)