SOLUTION: Find the absolute value. 1.) |3-i| 2.) |-2+3i|

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Question 175628: Find the absolute value.
1.) |3-i|
2.) |-2+3i|

Found 2 solutions by EMStelley, jim_thompson5910:
Answer by EMStelley(208)   (Show Source): You can put this solution on YOUR website!
If z = a+bi, then

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
1)

Since is in form, we can see that and


Start with the absolute value of a complex number formula.


Plug in and .


Square to get .


Square to get .


Add.


Approximate (this step may be optional)








2)

Since is in form, we can see that and


Start with the absolute value of a complex number formula.


Plug in and .


Square to get .


Square to get .


Add.


Approximate

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