Question

vreau rez completa nu numai rezultat mersi multtt​

Answer 1

Răspuns:

Explicație pas cu pas:

0,8(3) = (83 - 8)/90 = 75/90 = 5/6

1,2 = 12/10 = 6/5

5/6 : 6/5 = 5/6*5/6 = (5/6)^2

√(5/6)^2 = 5/6

____________

1 40/81 = 121/81 = (11/9)^2

√(11/9)^2 = 11/9

____________

0,49 = 49/100 = (7/10)^2

√(7/10)^2 = 7/10

____________

(5/6 - 11/9) : 7/10 = (15/18 - 22/18)*10/7 = -7/18*10/7 = -5/9