Question

What is the square root of -16 ?

Answer 1

Hey mate here is your answer ⬇️
√-16 = √16×(-1) = 4i .
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HOPE IT HELPS ...
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Answer 2

Here is your answer
The square root of -16 is
$\sqrt{ - 16 } = \sqrt{ - 16 } \times \sqrt{ - 1} = 4$

Hope it helps you