CORRIGES:

EXERCICE II:

1)

2)

3)

P=

4)

EXERCICE III:

1.

=

=

=

=4

2.

11 -

EXERCICE IV:

1.

2.

. =

=

EXERCICE V:

1. - . = - =x=- ==

2.

3.

..

4.

<=>

EXERCICE VI:

1.

a) -5 ≤ x <7 <= >x ∈ [-5,7[

b)4≤x≤18. <= >x ∈ [4,18]

c)3<x≤8. <= >x ∈ ]3,8]

d)-12<x<15 <= >x ∈ ]-12,15[

e) x>1<= >x ∈ ]1, →[

f) x< -33<= >x ∈ ]←,33[

2.

a) x ∈ [-2,1] <= > -2≤x≤1

b) x ∈ ]4,8]<= > 4<x≤8

c) x ∈ ]0,10[ <= > 0<x<10

d) x ∈ [-6,1[ <= > -6≤x<1

e) x ∈ [-6,→[ <= > x≥-6

f) x ∈ ]←,1] <= > x≤1