Question

Tính  \(\sqrt{81=}\)

\(\sqrt{0,64=}\)        \(\sqrt{\frac{49}{100}=}\)

\(\sqrt{8100=}\)      \(\sqrt{100=}\)

\(\sqrt{0,01=}\)       \(\sqrt{\frac{4}{25}=}\)      \(\sqrt{\frac{0,09}{121}=}\)

Ng các bạn giúp mik xin cảm ơn

 

Answer 1

\(\sqrt{81}=9\)

\(\sqrt{0,64}=0,8\)

\(\sqrt{\frac{49}{100}}=\frac{7}{10}\)

\(\sqrt{8100}=90\)

\(\sqrt{100=}10\)

\(\sqrt{0,01}=0,1\)

\(\sqrt{\frac{4}{25}}=\frac{2}{5}\)

\(\sqrt{\frac{0,09}{121}}=\frac{0,3}{11}\)

Answer 2

\(\sqrt{81}=9\);\(\sqrt{0,64}=0,8\);\(\sqrt{\frac{49}{100}}=\frac{7}{10}\);\(\sqrt{8100}=90\); \(\sqrt{100}=10\); \(\sqrt{0,01}=0,1\); \(\sqrt{\frac{4}{25}}=\frac{2}{5}\); \(\sqrt{\frac{0,09}{121}}=\frac{0,3}{11}=\frac{3}{110}\)

Answer 3

\(\sqrt{81}=9\)

\(\sqrt{0.64}=\sqrt{\frac{64}{100}}=\frac{8}{10}\);\(\sqrt{\frac{49}{100}}=\frac{7}{10}\)

\(\sqrt{8100}=\sqrt{81}.\sqrt{100}=9.10=90\);\(\sqrt{100}=10\)

\(\sqrt{0,01}=0,1\);\(\sqrt{\frac{4}{25}}=\frac{2}{5}\);\(\sqrt{\frac{0,09}{121}}=\frac{0,3}{11}\)