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8 of 10

Can you solve √-81? 

  • -9i
  • 99i
  • 9i
  • None of the above
That's Correct!
It's Wrong!

The square root of a negative number is an imaginary number. In this case, the square root of -81 is 9i, where i represents the imaginary unit.

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Key Data

Questions
10
Category
Math
Correct
0
Incorrect
0

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