SOLUTION: 2 + 3i= a) 13 b) square root of 13 c) 5 d) square root of 5

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Question 931106: 2 + 3i=
a) 13
b) square root of 13
c) 5
d) square root of 5
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming you want to evaluate abs%28a%2Bbi%29


abs%28a%2Bbi%29+=+sqrt%28a%5E2+%2B+b%5E2%29


abs%282%2B3i%29+=+sqrt%282%5E2+%2B+3%5E2%29+


abs%282%2B3i%29+=+sqrt%284%2B9%29


abs%282%2B3i%29+=+sqrt%2813%29


So the answer is choice B. Again, this is all based on the assumption you want to find abs%282%2B3i%29, where i+=+sqrt%28-1%29
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