{Rab*0.707-Rbc*0.707-0.8*0.966=0 (1)
{-Rab*0.707-Rbc*0.707-0.8*0.259+0.5=0 (2)
(1)+(2)
-2*Rbc*0.707-0,8*0,966-0,8*0,259+0,5=0
−1,414*Rbc−0,48=0
−1,414*Rbc = 0,48
Rbc = -0,48/1,414 = -(48/100):(1414/1000) =-480/1414 = -240/707
подставим Rbc в (1) и найдём Rab
Rab*0.707-(-240/707)*0.707-0.8*0.966=0
Rab*0.707 = (-240/707)*0.707+0.8*0.966
Rab*0.707 = 0,5328
Rab= 0,5328/0,707 =(5328/10000):(707/1000) = 5328/7070 = 2664/3535