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Veseljchak [2.6K]
3 years ago
8

Complex Numbers

Mathematics
1 answer:
seropon [69]3 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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