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3 years ago

15

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

1 answer:

Zepler [3.9K]3 years ago

6 0

|a+bi| = √(a² + b²)

-4-√2 i -> take a = -4 and b = -√2

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

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