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How do you take the square root of a negative number?

2 Answers

2 votes

use the imaginary number:
√(-1) = i


√(-20)


√((-1)*2*2*5)

2×i
√(5)

2i
√(5)

another example:


√(-4)


√((-1)*2*2)

2 × i

2i

User Yannick Funk
by
8.4k points
4 votes

Answer:

It is not possible to take the square root of a negative number, but you can use imaginary numbers

square root of -16= 4i

User Intra
by
7.6k points

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