1) a) \(\sqrt{25}\) б) \(\sqrt{64}\) в) \(\sqrt{36}\) г) \(\sqrt{100}\) 2) a) \(\sqrt{0,49}\) б) \(\sqrt{1600}\) в) \(\sqrt{0,04}\) г) \(\sqrt{900}\) 3) a) \(\sqrt{\frac{1}{81}}\); б) \(\sqrt{6\frac{1}{4}}\); в) \(\sqrt{1\frac{11}{25}}\); г) \(\sqrt{3\frac{1}{16}}\)

1. Вычисление квадратных корней:

1. a) \(\sqrt{25} = 5\)

   б) \(\sqrt{64} = 8\)

   в) \(\sqrt{36} = 6\)

   г) \(\sqrt{100} = 10\)

2. a) \(\sqrt{0,49} = 0,7\)

   б) \(\sqrt{1600} = 40\)

   в) \(\sqrt{0,04} = 0,2\)

   г) \(\sqrt{900} = 30\)

3. a) \(\sqrt{\frac{1}{81}} = \frac{1}{9}\)

   б) \(\sqrt{6\frac{1}{4}} = \sqrt{\frac{25}{4}} = \frac{5}{2} = 2,5\)

   в) \(\sqrt{1\frac{11}{25}} = \sqrt{\frac{36}{25}} = \frac{6}{5} = 1,2\)

   г) \(\sqrt{3\frac{1}{16}} = \sqrt{\frac{49}{16}} = \frac{7}{4} = 1,75\)