Ответ:

  1. √3 ≈ 1,732.
  2. √6 ≈ 2,449.
  3. √8 = 2√2 ≈ 2,828.
  4. √3,5 ≈ 1,871.
  5. −√7 ≈ −2,646.
  6. −√10,5 ≈ −3,240.