Odpowiedź:
zad 7
b)
(1 2/5)² = (7/5)² = 49/25 = 1 24/25
(- 1 1/2)² = (- 3/2)² = 9/4 = 2 1/4
- 1,2² = - 1,44
- 4³ = - 64