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15 May, 12:25

What is the sum of the square root of - 2 and the square root of - 18?

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  1. 15 May, 12:45
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    4 sqrt (2) i

    Step-by-step explanation:

    sqrt (-2) + sqrt (-18)

    We know that sqrt (ab) = sqrt (a) sqrt (b)

    sqrt (-1) sqrt (2) + sqrt (-1) sqrt (9) sqrt (2)

    The sqrt (-2) = i

    sqrt (2) i + 3sqrt (2) i

    4 sqrt (2) i
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