Odpowiedzi

2009-11-02T23:31:03+01:00
Zad 1
a) -7⁴₉-2¹₆ = -67/9 - 13/6 = - 402/54 - 117/54 = -519/54 = -9¹¹/₁₈
b)3¹₄ - 8⁵₆ = 13/4 - 53/6 = 78/42 - 212/24 = -134/24 = -5⁷/₁₂
c)-2³₅ + 7¹₃ = -13/5 + 22/3 = -39/15 + 110/15 = 71/15 = 4¹¹/₁₅
d) -3,12 - 6,1 = -9,22
e) -7,2 +12,36 = 5,16
f) 6,4 - 10,25 = -3,85
g) -3¹₇ -1,2 = -22/7 - 6/5 = -110/35 - 42/35 = -152/35 = -4¹²/₃₅
h) 4⁵₆ - 8,2 = 29/6 - 41/5 = 145/30 - 246/30 = -101/30 = -3¹¹/₃₀
zad 2
a )- 6²₃ : 2 = -20/3 : 2 = -20/3 * 1/2 = -20/6 = -3¹/₃
b) -6²:¹₂ = 36 : 1/2 = 36 * 2/1 = 72/1 = 72
c)3³₄ :(-1,25)² = 15/4 : 1,5625 = 3,75 : 1,5625 = 2,4