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What is |1 − 8i|? A. 65 B. √13 C. √-65 D. √65
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21 votes
What is |1 − 8i|?
A. 65
B. √13
C. √-65
D. √65

User Flynorc
by
3.4k points

1 Answer

11 votes
Hey There !

|1-8i| is in the form of |a+bi| = √a^2+b^2

So now ,

a = 1 b=-8

=> √1^2+(-8)^2

=> √1+64

=> √65

Hence option D is correct

Hope this helps you!:)
User Kacper Madej
by
3.2k points
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