Oblicz: 1. (3/10+1i1/20) · 4 równe 5 i 2/5 2. 5 · 5/6+1 i 1/9 · 6 równe 6 i 5/6 Na dzisiaj !!!!!!! Daje [latex]NAJLPESZE [/latex]

1. (3/10+1i1/20)*4=(6/20+1i1/20)*4=1i7/20*4=27/20*4=108/20=5i8/20=5i2/5 2. 5*5/6+1i1/9*6=25/6+10/9*6=25/6+60/9=25/6+20/3=25/6+40/6=65/6=6i5/6

1).(3/10 +1 i 1/20) · 4 = (6/20 + 1 i 1/20) · 4 = 1 i 7/20 · 4 = 27/20 · 4 = 27/5 =    = 5 i 2/5 2).5 · 5/6 +1 i 1/9 · 6 = 25/6 +10/9 · 6 = 25/6 +20/3 = 25/6+40/6 = 65/6 =   = 10 i 5/6