anonymous
  • anonymous
is represented square root as @ then wouldnt -@100 equal both -10 and 10?
Mathematics
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
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anonymous
  • anonymous
because @100 equals -10 and 10 so if i multiplied both with - the awnsers would still be -10 and 10 just switched around respectively
phi
  • phi
I would guess that if a sign is specified, they mean take the negative square root. example: \[ - \sqrt{4} = -2 \]
phi
  • phi
It comes down to, what did the writer mean ?

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anonymous
  • anonymous
ok what if i did it like this -(\[\sqrt{100}\])
anonymous
  • anonymous
i mean -(\[\sqrt{100}\])
phi
  • phi
if they wanted you to consider both roots, it would be clearer to write \[ ± \sqrt{100} \] if they don't write that, but rather \[ - \sqrt{100} \] I would interpret the second way to mean "take only the negative root"
anonymous
  • anonymous
ok thank you
phi
  • phi
It helps to know the context of the expression. Whoever wrote this should be trying to be clear (as opposed to confusing).

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