Question

Łatwe za 50 pkt

wszystkie.zad

Answer 1

zad 27

2a² = d₁²
2a² = 4r₁²

a = d₂
a = 2r₂

2(2r₂)² = 4r₁²
8r₂² = 4r₁²
2r₂² = r₁²
r₁²/r₂² = 2
r₁/r₂ = √2

Odp. C

zad 28

Odp. B


zad 29

√2/2 = √2/(√2*√2) = 1/√2

Odp. D

zad 30

x*0,15 = 45
x = 45/0,15 = 300

Odp. D