1. The complex conjugate of -2-3i                                                                      

a) 2+3i
b) -2+3i
c) -2-3i
d) -2-3i

2. Adding complex numbers means you add the real parts and add the imaginary parts separately. Try (3+2i) + (4 - 3i)

a) 7 - i
b) 1 - i
c) 1 - i
d) 7 - 5i

3. What is (-5+3i) - (-1-7i) ?

a) -6+10i
b) -4+7i
c) -6+7i
d) -4+10i

4. Z=2+3i so its complex conjugate What is Z.?

13
4+9i
4-9i
9-4i

5. ¦Z¦ means the modulus or distance from the point to the origin. What is ¦3+4i¦?

25
2
5
3

6. If 2-3i is a root of a quadratic equation. What is the other root?

2
2+3i
-2+3i
None of the above