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
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)x+[x-z+x]=x+2x-z=3x-z
b)a-b+a=2a-b
c)a-[b-a-b]=a-[-a]=a+a=2a
d)nie bardzo wiem o co chodzi z nawiasami typu}
Z2
-9/20-1/2+1/10+1/2+34/10+4/5=-9/20-10/20+2/20+10/20
68/20+16/20=77/20=3 17/20
a) x + [ x-(z-x) ]
x+x-z+x =3x -z
b) -(-a) + ( -b+a )
a-b+a=2a-b
c) a- [ b- (a+b) ]
a-b-a-b=2a-2b
d) x- { x- [x-(x+1)-(x-1)-x]+(1-x}
x- { x- [x-x-1-x+1-x]+(1-x}
x- x- x-x-1-x+1-x+1-x
-6x+2