Please check ans: If w=1-i and z=-2+3i, then find:

[TONYYEUNG]

Dear ALL,

Please let me know the answer of the following questions are right or not.

If w=1-i and z=-2+3i, then find:
__
a) wz

=1+5i

b) Re(w[squared])

=1

c) Im(iz+w)

=3i-1
_
d) zz

=13

e) I z-iw I ???

 

[tkhunny]

a) Good, maybe. It there a conjugate bar over that? Then it's wrong.
b) Try again.
c) Try again. You can't have a Real Part in there, can you?
d) Good, I think. Is that conjugate bar over one of the 'z's?
e) Is that a magnitude operator that looks like 'I's? You did this in part c.

It looks like you don't quite have the spirit of this lesson. I would suggest reading the section over and reworking the examples.