Răspuns:
Explicație pas cu pas:
M=-9<-2x+1≤1
M=- 9-1<-2≤1-1
M= -10 <-2x≤ 0 l : 2
M= -5< -x≤0
M= -x < -5≤0
M= x<5≤0
M= { 4,3,2,1,0 }
-
P=⁴⁾-1 ≤ (x+3 )/4 ≤ ⁴⁾3
P= -4 ≤x+3≤12
P=-3-4≤x≤12-3
P=-7≤x≤9
P={ -7,-6,-5,-4,-3,-2,-1 0,1,2,3,4,5,6,7,8,9 }
-
M∪P= { -7,-6,-5,-4,-3,-2,-1 ,0,1,2,3,4,5,6,7,8,9 }
M-P={