Oblicz :
-3,5-2-12,5+4-8,5=
-5,75+2 i 2/3 - $ i 1/4 - (-3 i 1/3) =
1) -22,5
2) -64,49
-3,5-2-12,5+4-8,5= -18+4-8,5=-22,5
-5,75+2 i 2/3 - 4 i 1/4 - (-3 i 1/3) =-5 3/4 + 2 2/3 - 4 1/4 + 3 1/3 =
=-23/4 +8/3 -17/4 + 10/3 =-69/12 +32/12 -51/12 + 40/12 =
=-48/12 = -4
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1) -22,5
2) -64,49
-3,5-2-12,5+4-8,5= -18+4-8,5=-22,5
-5,75+2 i 2/3 - 4 i 1/4 - (-3 i 1/3) =-5 3/4 + 2 2/3 - 4 1/4 + 3 1/3 =
=-23/4 +8/3 -17/4 + 10/3 =-69/12 +32/12 -51/12 + 40/12 =
=-48/12 = -4