Odpowiedź:
zad 3
(1/5)² = 1/5 * 1/5 = 1/25
(2/5)³ = 2/5 * 2/5 * 2/5 = 8/125
(1 i 2/5)² = (7/5)² = 7/5 * 7/5 = 49/25 = 1 i 24/25
(2 i 1/2)³ = (5/2)³ = 5/2 * 5/2 * 5/2 = 125/8 = 15 i 5/8
zad 4
1/4 = 1/2 * 1/2
9/25 = 3/5 * 3/5
16/81 = 4/9 * 4/9
49/36 = 7/6 * 7/6
