Question

sen considera numerele a= (1/3+1/5): 1/2 si b = 1/2*(1/3-1/5).Aratati ca numarul a este de 16 ori mai mare decat numarul b.​

Answer 1

Răspuns:

Explicație pas cu pas:

a= (1/3+1/5): 1/2 =(5+3)/15×2=8×2/15=16/15

b = 1/2×(1/3-1/5)=(5-3)/15×1/2=2/15×1/2=1/15

a/b=16/15:1/15=16    a este de 16 ori mai mare decat b

Answer 2

Răspuns:

a= (⁵⁾1/3+³⁾1/5): 1/2

a=(5/15+3/15):1/2

a=8/15·2/1

a=16/15

b = 1/2*(⁵⁾1/3-³⁾1/5)

b=1/2·(5/15-3/15)

b=1/2·2/15

b=2/30=>b=1/15

a=16b=>a=16·1/15=>a=16/15(adevarat)

a > b de 16 ori