Simplify

Using laws of exponents, .

A: + i
-2
A: + i
3
B: + i
-1
B: + i
-1
C: + i
3
C: + i
-4
D: + i
4
D: + i
1
The absolute value of any complex number a + bi is the from (a, b) to (0, 0) in the complex plane.
distance
Because |a + bi| is equal to a distance, |a + bi| will always be a number.
Which of the following can be used to find the absolute value of 4 – 7i?
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