September 2018 2 19 Report

Zad 1 .

Zapisz w jak najprostszej postaci podane wyrażenia :

a) x + [ x-(z-x) ]

b) -(-a) + ( -b+a )

c) a- [ b- (a+b) ]

d) x- { x- [x-(x+1)-(x-1)-x]+(1-x}

Zad 2 . Oblicz :

a)

- 1/2 * 0,9-1/2+0.1+1/2+3,4+1/2*1,6


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