SOLUTION: Graph z=4-5i on complex plane. Find the modulus of z.

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Question 1087713: Graph z=4-5i on complex plane. Find the modulus of z.
Answer by ikleyn(52946) About Me  (Show Source):
You can put this solution on YOUR website!
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Modulus z = |z| = sqrt%284%5E2+%2B%28-5%29%5E2%29 = sqrt%2816+%2B+25%29 = sqrt%2841%29.


On complex numbers, see introductory lessons
    - Complex numbers and arithmetical operations on them
    - Complex plane
    - Addition and subtraction of complex numbers in complex plane

    - Solved problems on taking roots of complex numbers
    - Solved problems on arithmetic operations on complex numbers
    - Solved problem on taking square root of complex number
in this site.

Also, you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Complex numbers".