Learning Task 2. A. Tell whether each of the following is a rational or irrational. If it is rational, give the principal root. Rational or Irrational Principal root 1. square root of 1 _ _ 2. square root of 8 _ _ 3. square root of 52 _ _ 4. square root of 256 _ _ 5. square root of 15 _ _

(1) \sqrt {1}: rational(\checkmark); irrational(\times); (2) \sqrt {8}: rational(\times); irrational(\checkmark); (3) \sqrt {52}: rational(\times); irrational(\checkmark); (4) \sqrt {256}: rational(\checkmark); irrational(\times); (5) \sqrt {15}: rational(\times); irrational(\checkmark);