Witam.
[tex]a) \: \sqrt{4 ^{4} } = \sqrt{256} = 16[/tex]
[tex]b) \: \sqrt{ {( - 7)}^{2} } = \sqrt{49} = 7[/tex]
[tex]c) \: \sqrt{ {5}^{4} \times {2}^{2} } = \sqrt{625 \times 4} = \sqrt{625} \times \sqrt{4} = 25 \times 2 = 50[/tex]
[tex]d) \: \sqrt{8 \times 162} = \sqrt{1296} = 36[/tex]
[tex]e) \: \sqrt{3 \times 21 \times 7} = \sqrt{63 \times 7} = \sqrt{441} = 21[/tex]
[tex]f) \: \sqrt{27000 \times 30} = \sqrt{810000} = 900[/tex]
[tex]g) \: \sqrt{22500} = 150[/tex]
[tex] h) \: \sqrt{0.0009} = {0.03} [/tex]
[tex]i) \: \sqrt{12.25} = 3.5[/tex]
[tex]j) \: \sqrt{4.41} = 2.1[/tex]
[tex]k) \: \sqrt{ \frac{12}{75} = } \sqrt{ \frac{4}{25} } = \frac{2}{5} [/tex]
[tex]l) \: \sqrt{ \frac{98}{128} } = \sqrt{ \frac{49}{64} } = \frac{7}{8} [/tex]
[tex]m) \: \sqrt{7 \frac{9}{16} } = \sqrt{ \frac{121}{16} } = \frac{11}{4} = 2 \frac{3}{4} [/tex]
[tex]n) \: \sqrt{4 \sqrt{16} } = \sqrt{4 \times 4} = \sqrt{64} = 8[/tex]
Pozdrawiam,
Michał
