phinawalker
phinawalker phinawalker
  • 18-07-2018
  • Mathematics
contestada

im not understanding this question

im not understanding this question class=

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choixongdong
choixongdong choixongdong
  • 18-07-2018

It's said "The value √-9 is not -3 because --------------------

So you need to prove why -3 is not the value of √-9.


As you know (-3)^2 = (-3) * (-3) = 9, ≠ -9


Answer is A. 

(-3)^2 ≠ -9

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lovelygirl18 lovelygirl18
  • 18-07-2018
The correct answer A
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