Question

Va rog ajutatima nu mai am timp sa il fac (ex1) am nevoie maxim in 15 Min dau 20 pucte .Mulțumesc anticipat!!!va rog frumos ajutatima.

Answer 1

a)x-4>0/+4
x>4
S={5,6,7,....}

b)x-3>0/+3
x>3
S={4,5,6,....}

c)x-1 <=0/+1
x <=1
S={1,2,3,4,...}

d)-x+2 <0/-2
-x <-2
S={-3,-4,-5, ..}

e)-x-5>=0/+(-5)
-x>= -5
S={-5, -4,-3,...}

f)3x+18 <=0/18-0
3x <=18/:3
x <=6
S={6,5,4,...}
Ai prins ideea...