iloveanime407briseid iloveanime407briseid

03-11-2021
Mathematics

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What is the sum of √-2 and √-18?
4 √ 2
4 √2i
5 √2
5 √2i

What is the sum of 2 and 18 4 2 4 2i 5 2 5 2i class=

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sqdancefan sqdancefan

04-11-2021

9514 1404 393

Answer:

(b) 4√2i

Step-by-step explanation:

√-2 = √2i

√-18 = 3√2i

The sum of these is ...

√-2 +√-18 = √2i +3√2i = (√2i)(1 +3) = 4√2i

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