Question

Oblicz i zapisz w najprostszej postaci . a 1 i 1/4 + 3 i 4/5 b 13 i 1/2 + 3 i 7/15 c 2 i 5/6 + 1 i 1/2 d 8 i 2/9 + 2 i 5/6 e 4 i 2/3 - 1 i 5/6 f 3 i 3/4 - 1 i 2/3 g 3 i 5/9 - 1 i 8/15 h 8 i 3/18 - 2 i 5/9 . To jest w podręczniku wsip matematyka 2001 str 149 zad 8 .

Answer 1

1 i 1/4 + 3 i4/5 = 1 i 5/20 + 3 i 16/20 = 4 i 21/20 = 5 i 1/20

13 i 1/2 + 3 i 7/15 = 13 i 15/30 + 3 i 14/30 = 16 i 29/30

2 i 5/6 + 1 i 1/2 = 2 i 5/6 + 1 i 3/6 = 3 i 8/6 = 4 i 2 /6

8 i 2/9 + 2 i 5/6 = 8 i 4/18 + 2 i 15/18 = 10 i 19/18 = 11 i 1/18

4 i 2/3 - 1 i 5/6 = 4 i 4/6 - 1 i 5/6 = 2 i 5/6

3 i 3/4 - 1 i 2/3  = 3 i 9/12 - 1 i 8/12 = 2 i 1/12 

3 i 5/9 - 1 i 8/15 =3 i 25/45 - 1i 24/45 = 2 i 1/45

8 i 3/18 - 2 i 5/9 = 8 i 3/18 - 2 i 10/18 = 7 i 21/18 - 2 i 10/18 = 5 i 11/18

 :D