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mars1129 [50]
3 years ago
14

What does | 3+i | equal

Mathematics
1 answer:
prohojiy [21]3 years ago
4 0
The straight lines are asking to find the modulus or the size of the complex number.
For a complex number  z = x + iy,  [z] = √(x^2 +y^2)
Where x = Real Number, y = Imaginary number.
For 3 +i,  x = 3, y = 1    (Note y is what number that is attached to i)

[3 + i] = √(3^2 +1^2) = √10 = 3.162
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