Question

Zad. 2 i 3 str. 47 Oblicz
przykłady w załączniku



Matematyka z plusem 2. Podręcznik Kl. 2 Gimnazjum

Answer 1

Zad 2
a) 4(√3)² = 4*3 = 12
b) (2√2)² = 4*2 = 8
c) √7*3√7 = 3*7 = 21
d) 2√3*5√3 = 10*3 = 30
e) (2√5/5)² = 4*5/25 = 20/25 = 4/5
f) (2/3√6)² = 4/9*6 = 24/9 = 2 6/9 = 2 2/3
g) (-0,1√10)² = 0,01*10 = 0,1
h) -3√15*2√15 = -6*15 = -90

zad 3
a) (1/2∛12)³ = 1/8*12 = 12/8 = 1 4/8 = 1 1/2
b) (-2∛1/4)³ = -8*1/4 = -8/4 = -2
c) (-10∛-0,1)³ = -1000*(-0,1) = 100
d) 3∛7*2(∛7)² = 6*7 = 42
e) 5(∛-6)² *4∛-6 = 20*(-6) = -120
f) (-7∛-2)² *∛-2 = 49*(-2) = -98