Question

Oblicz:
2 i1/2 + (3i1/2 -2)=
7 i3/4 - (2i1/4 +2i3/4)=
(5 i3/4+4i 2/4) - (3i 1/2+2i 1/2)=

Answer 1

2 i1/2 + (3i1/2 -2)=
= 2 1/2 + 1 1/2 = 4

7 i3/4 - (2i1/4 +2i3/4)=
= 7 3/4 - 2 1/4 - 2 3/4 = 5 - 2 1/4 = 2 3/4
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(5 i3/4+4i 2/4) - (3i 1/2+2i 1/2)=
= 9 5/4 - 6 = 10 1/4 - 6 = 4 1/4

Answer 2

2 i 1/2 + (3 i 1/2 - 2 ) = 
2 i 1/2 + 1 i 1/2 = 3 i 2/2 = 4 

7 i 3/4 - (2 i 1/4 + 2 i 3/4) = 
7 i 3/4 - 4 i 4/4 = 
7 i 3/4 - 5 = 2 i 3/4

(5 i 3/4 + 4 i 2/4) - (3 i 1/2 + 2 i 1/2) = 
9 i 5/4 - 5 i 2/2 =
10 i 1/4 - 6 = 4 i 1/4