What is the absolute value of the complex number -4-√2

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asked Oct 20, 2019 145k views

2 Answers

Corentin · Answer 1 · 2019-10-25T04:46:38+0000

|a+bi| = √(a² + b²)

-4-√2 i -> take a = -4 and b = -√2

|-4-√2 i| = √[ (-4)² + (-√2)² ]
= √[ 16 + 2 ]
= √[ 18 ] = √[ 9 * 2 ]
= 3√2
the absolute value is 3√2

What is the absolute value of the complex number -4-√2

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