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Helpp please which onee

Helpp please which onee-example-1
User Aathira
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C. 9i

Because a negative number under the radical is not something that would normally happen, we need to use i for an imaginary number. However, we can take the square root of 81, which gives us an even 9.

Hope this helps!! :)

User Subhajit Panja
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