Question

Ex 13 va rog e urgent!!

Answer 1

Răspuns:

a)

2=2

8=2^3

18=2•3^2

32=2^5

cmmmc = 2^5•3^2 = 288

a=(rad144 + 2rad36 + 3rad16 + 4rad9)/rad288

a=(12+12+12+12)/rad288

a=48/12rad2

a=48rad2/24

a=2rad2

b)

b=rad[(169-25)/(100-64)]

b=rad(144/36)

b=12/6

b=2

a^2 = 2rad2 • 2rad2 = 8

b^2 = 2•2 = 4

a^2 - b^2 = 4