Question

Dau 35 p și coroană ​

Answer 1

Răspuns:

a)

x • 3/8 = 3/4

x = 3/4 • 8/3

x = 2

b)

rad3/3 + x > 4rad3/3

x > 4rad3/3 - rad3/3

x > 3rad3/3

x > rad3

Answer 2

Răspuns:

x : 2  2/3 = 3/4

x : (2×3+2)/3 = 3/4

x : 8/3 = 3/4

x = 8/3 × 3/4

x = 8/4

x = 2

1/√3 + x > 4√3/3

√3/3 + x > 4√3/3

x > 4√3/3 - √3/3

x > 3√3/3

x > √3

x ∈ ( √3 ; +oo )