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Anastasy [175]
3 years ago
10

What is equivalent to

\sqrt{ - 81} " alt="13 - \sqrt{ - 81} " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Radda [10]3 years ago
7 0
√- 81 doesn't result in a rational number because you can't get a negative from squaring any number. Instead you get a number with an imaginary number. 

13 - √- 81 = 13 - 9i
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