Question

Решите пожалуйста срочно

Answer 1

а=2/3

b= - 5/6 =>. b²= 25/36

c=0,6 = 6/10= 3/5

a/c= 2/3 : 3/5 =2/3 * 5/3 = 10/9

1: (10/9 - 25/36) =1 : (40/36 - 25/36) =

= 1 : 15/36 = 36/15 = 12/5 = 2,4