Respuesta :

Answer:

2i sqrt(5)

Step-by-step explanation:

sqrt(-20)

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

sqrt(-1) sqrt(20)

We know that sqrt(-1) = i

i sqrt(20)

i sqrt(4*5)

i sqrt(4) sqrt(5)

i 2 sqrt(5)

2i sqrt(5)

Answer:

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Step-by-step explanation: