Question

Scrieti,cu ajutorul intervalelor,multimile:

Answer 1

a) -3 </ x </ 3 => A =[-3, 3]

b) -4< x < 4 => B =(-4,4)

c) -1>/ x >/ 1 => C=[-1,1]

d) -1 </ x - 1</ 2   /+1

0 </ x </ 3 => D = [0,3]

e) 2 </ x+2 </ 4   /-2

0 </ x </ 2 => E=[0,2]

Answer 2

1. Răspuns:a) A=(-inf.;3]
2. B=(-inf;4)
3. C=(+inf;1]
4. D=(-2;2] sper ca este corect
5. E=∅......?