valeriazapata200
valeriazapata200
10-12-2017
Mathematics
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[tex]-2 \sqrt{-81}+9 please..
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lesliekolleroxrkcf
lesliekolleroxrkcf
10-12-2017
if I read this correctly you need ✓-81 + 9?
that would be 9i + 9 in complex numbers. there is no solution among the real numbers since you cannot take the square root of a negative numbrr
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