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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=

Sagot :

sqdancefan

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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