Odpowiedź :
a) z=2
(1-2)/(2*2)=-1/4=-0,25
b) z=-2
[1-(-2)]/[2*(-2)]=3/-4=-0,75
c) z=-1/2
[1-(-1/2)]/[2*(-1/2)]=1,5/-1=-1,5
d) z=-0,2
[1-(-0,2)]/[2*(-0,2)]=1,2/-0,4=-3
Łatwe to jest, poćwicz sobie ;)
[tex] \frac{1 - 2}{2 \times 2} = \frac{ - 1}{4} = - \frac{1}{4} [/tex]
[tex] \frac{1 - ( - 2)}{2 \times ( - 2)} = \frac{1 + 2}{ - 4} = \frac{3}{ - 4} = - \frac{3}{4} [/tex]
[tex] \frac{1 - ( - \frac{1}{2}) }{2 \times (- \frac{1}{2}) } = \frac{1 \frac{1}{2} }{ - \frac{1}{4} } = - 6[/tex]
[tex] \frac{1 - ( - 0.2)}{2 \times ( - 0.2)} = \frac{1.2}{ - 0.4} = - 3[/tex]