Question

1.Oblicz jak najprostszym sposobem:

a) 4² * 12² * (¼)²
b) (-8)² * ( -2 i ⅓)² * (-3/7)²
c) (-1,5)³ * ( -1 i ⅓)³ * (-2)³
d) (7,2)³ * (-5/18)³ : (-0,8)³

Tu są odpowiedzi. a) 144 b)64 c) -125 d) 15

2.Oblicz potęgi:

(-ab²cd²)⁵

proszę. mam to na ocenę :* daje naj.. :)

Answer 1

zad 1

a) 4² * 12² * (¼)²=[4*12* 1/4]²=12²=144
b) (-8)² * ( -2 i ⅓)² * (-3/7)²=[-8*(-7/3)*(-3/7)]²=(-8)²=64
c) (-1,5)³ * ( -1 i ⅓)³ * (-2)³=[-3/2 * (-4/3) * (-2)]³=(-4)³=-64
d) (7,2)³ * (-5/18)³ : (-0,8)³=[36/5 * (-5/18) * (-5/4)]³=(5/2)³=125/8

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zad 2

(-ab²cd²)⁵=(-acb²d²)⁵=-a⁵c⁵b¹⁰d¹⁰