Question

Exercitiile urmatoare :3&4

Answer 1

Răspuns:

Explicație pas cu pas:

a = 7/5 => a² = (7/5)² =  49/25

Inversa lui a² = 1/a² = 25/49

f = 5/9 x 2 intregi si2/5 + 2 intregi si 1/3 = 5/9 x 12/5 + 7/3 =

= (5x12)/(9x5) + 7/3 = 12/9 + 7/3 = 4/3 + 7/3 = 11/3 = 3 intregi si 2/3

Answer 2

3)7/5la a 2a=49 /25 invers 25/49 5/9*12/5+7/3=1/9*12/1+7/3=12/9+7/3= amplifica pe7/3 cu 3 =12/9+21/9=33/9simplific cu 3=10/3