Odpowiedź:
Szczegółowe wyjaśnienie:
20
a) x² = 8 = 4∙2 to √x² = √4∙2 to x = 2√2
b) x² = 80 = 16∙5 to √x² = √16∙5 to x = 4√5
c) x² = 1/3 to √x² = √1/3 = 1/√3 = √3/√3√3 = √3/3
d) x³ = 10 to ∛x³ = ∛10 to x = ∛10
e) x³ = 33 to ∛x³ = ∛33 to x = ∛33
f) x³ = - 44 to ∛x³ = ∛(- 44) to x = ∛(- 44) = -∛44
