Odpowiedź:
26.
a)
√(1 9/16) * (- 2)² + 1,2 * 5/12 = √(25/16) * 4 + 12/10 * 5/12 =
= 5/4 * 4 + 1/2 * 1 = 5 + 1/2 = 5 1/2
b)
2 1/2 - 1/2 * ∛(3 3/8) + 1/2 = 2 1/2 - 1/2 * ∛(27/8) + 1/2 =
= 2 1/2 - 1/2 * 3/2 + 1/2 = 2 1/2 - 3/4 + 1/2 = 2 2/4 - 3/4 + 2/4 =
= 2 4/4 - 3/4 = 2 1/4
c)
4/3 - ( - 1 1/3)² : 0,9 = 4/3 - (- 4/3)² : 9/10 = 4/3 - (16/9 * 10/9) =
= 4/3 - 160/81 = 108/81 - 160/81 = - 53/81
d)
0,8 * 3/2³ - (- 2)³/4 * 0,1 = 0,8 * 3/8 - (- 8)/4 * 0,1 =
= 8/10 * 3/8 - (- 2) * 0,1 = 1/10 * 3 - (- 0,2) = 3/10 + 0,2 = 0,3 + 0,2 = 0,5
e)
(1 1/3)² * ( - 3)² - 1,9⁰ * 1/3 = (4/3)² * 9 - 1 * 1/3 = 16/9 * 9 - 1/3 =
= 16 - 1/3 = 15 3/3 - 1/3 = 15 2/3
