Which expression is equivalent to square root of negative 80

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sqrt{-80}

sqrt{16}•sqrt{5}•sqrt{-1}

You know that sqrt{-1} = i.

4sqrt{5}i

Done.

=  .

Step-by-step explanation:

Given : square root of negative 80

To find: Which expression is equivalent.

Solution : We have given .

We can write the 80 as 16 *5

=  .

By the radical rule :

Therefore,   =  .

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