beatifultayla beatifultayla
  • 31-08-2020
  • Mathematics
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Simplify radical -81

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clara856
clara856 clara856
  • 31-08-2020

Step-by-step explanation:

-81

[tex] \sqrt{ - 1} \: \times \sqrt{81} [/tex]

[tex] \sqrt{ - 1} = i [/tex]

[tex]i \times \sqrt{9 {}^{2} } [/tex]

[tex]i \times 9[/tex]

[tex]9i[/tex]

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