Question

va rog nu ma descurc si daca se poate sa imi si explicati​

Answer 1

Răspuns:

cifre in baza 10 ,se aduce la acelasi numitor comun si se afla a

3a/12+²⁾a/6=a2/12

(3a+2·a)/12=(34+2·4)/12=42/12=>a=4

²⁾2a/8+a1/16=77/16

a1/16=77/16-(2·2a)/16

(77-2·23)/16=(77-46)/16=31/16=>a=3

a4/16-2a/8=1/4

a4/16=⁴⁾1/4+²⁾2a/8

4/16+(2·2a)/16=[4+(2·25)]/16=54/16=>a=5

verificare:

54/16-²⁾25/8=54/16-50/16=4/16=1/4