Podane wyrażenia zapisz w jak najprostrzej postaci.
a) a-[a-(1-a)]
b) -x-[-(1-x)-(x-1)
c)x-[y-(x-y)-x-(y-x)]
d)1-a-[1-(a-1)-2a-(1-3a)]-a-1
Proszę o pomoc ; ))) z góry dziękuje ; )
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Podane wyrażenia zapisz w jak najprostrzej postaci.
a) a-[a-(1-a)] =
= a -[a -1 +a] =
= a - [ 2a -1] =
= a -2a +1 =
= -a +1
b) -x-[-(1-x)-(x-1) =
= -x -[ -1 +x -x+1] =
= -x -[0 ] =
= - x
c)x-[y-(x-y)-x-(y-x)] =
= x - [ y -x +y -x -y +x] =
= x - [ y -x ] =
= x -y +x =
= 2x -y
d)1-a-[1-(a-1)-2a-(1-3a)]-a-1=
= 1-a - [1-a+1 -2a-1+3a] -a -1 =
= 1 -a -[ 1 ] - a -1 =
= 1 -a -1 -a -1 =
= -2a -1
a) a-[a-(1-a)] = a - (a - 1 + a ) = a + a + 1 - a
b ) .... = x - (-1 + x - x + 1 ) = -x
c) .... x + y - x + y - x -y + x (tu musisz dokonać redukcji) x - (y-x) = x-y+x = 2x - y
d).... = 1 - a + ( 1a + 1 - 2a - 1 + 3a ) - a - 1(chyba) + - a - 1 + a - 1 _ 2a - 3a - a - 1 = =2a - 1
nie jestem pewna czy dobrze. :)