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Veseljchak [2.6K]

2 years ago

8

Complex Numbers

1 answer:

seropon [69]2 years ago

4 0

Answer:

±10

Step-by-step explanation:

sqrt(-4) * sqrt(-25).

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

sqrt(-4*-25)

sqrt(100)

±10

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