Question

Urgenttt vaa roggg!!​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

√12^2 = 12 ∈ R

b)

√4^3 = √64 = 8 ∈ R

d)

√(12^2 + 16^2) = √(144 + 256) = √400 = 20 ∈ R

e)

√(5/3)^4 = (5/3)^2 = 25/9 ∈ R

f)

0,(2) = 2/9

2*2/9 = 4/9

√4/9 = 2/3 ∈ R