14. Oblicz:
a) 3 i 1/9-1 i 5/9+2 i 4/9=?
b) 6-(4 i 1/5-2 i 35)=?



14 Oblicz A 3 I 191 I 592 I 49 B 64 I 152 I 35 class=

Odpowiedź :

Odpowiedź:

a) [tex]\frac{28}{9} - \frac{14}{9} + \frac{22}{9} = \frac{36}{9} = 4\\[/tex]

b) [tex]6 - (\frac{21}{5} - \frac{13}{5})= 6 - \frac{8}{5} = \frac{6}{1} - \frac{8}{5} = \frac{30}{5} - \frac{8}{5} = \frac{22}{5} = 4\frac{2}{5}[/tex]