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Osma liczba napisala
Joblicz.
()-(-3) b) (3) -> +
c) 10. (-0,1)+ -0,1 . 104
d) 32.5-(-3) (-3)
a)​


Osma Liczba NapisalaJoblicz3 B 3 Gt C 10 01 01 104d 3253 3a class=

Odpowiedź :

a) [tex]\frac{1}{9} -(-\frac{1}{27})= \frac{1}{9} +\frac{1}{27}= \frac{3}{27} +\frac{1}{27}= \frac{4}{27}[/tex]

b) [tex]\frac{4}{49} -\frac{4}{7} +\frac{2}{49} =\frac{4}{49} -\frac{28}{49} +\frac{2}{49}=-\frac{22}{49}[/tex]

c) 10*0,0001-0,1*10000= 0,001-1000= -999,999

d) [tex]9*\frac{1}{3}-1*9=3-9= -6[/tex]

Odpowiedź:

a)

(1/3)² - (-1/3)³ = 1/9 + 1/27 = 3/27 + 1/27 = 4/27

b)

(2/7)² - 2²/7 + 2/7² = 4/49 - 4/7 + 2/49 = 6/49 - 28/49 = -22/49

c)

10 * (-0,1)^4 - 0,1 * 10^4 = 10 * 0,0001 - 0,1 * 10000 = 0,001 - 1000 = -999,999

d)

3² * 1/3 - (-1/3)^0 * (-3)² = 9 * 1/3 - 1 * 9 = 3 - 9 = -6

Szczegółowe wyjaśnienie: