Complex numbers

  • Thread starter Lmck33
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  • #1
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Homework Statement



Let z1 = 4 + 3i and z2 = 2 - 5i. Find each of the following in the form
x + iy, showing the details of your work:

I'll show in the photo the 2 questions i require help with.

Homework Equations



Complex numbers

The Attempt at a Solution



attempted f) 1/z^2 = z1 = 4+3i

z1 = 4/25 - 3i/25

However i'm really lost, mind blank and more so with question e) :S

Thanks for any help .
 

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Answers and Replies

  • #2
z*zbar=|z|^2.

Part e is just some real number.

Write down the expression and do the multiplication.
 

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