2- Soit z = x + iy où (x; y) E IR2. Z - 1
On pose Z = avec z # -1
Z +1
1. Montrer que Z a pour forme algébrique :
x2 + y2 – 1
2y
Z =
+i
(x + 1)2 + y2 (x + 1)2 + y2
2. Quel est l'ensemble des points M(z) tels que Z est :
a. Réel.
b. Imaginaire pur.

throw the computer

step-by-step explanation:

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

b, i believe, but not sure.