Respuesta :
Answer:
9i
Step-by-step explanation:
Use the product property of radicals to simplify the following radical.
[tex]\sqrt{-81}[/tex]
-81 can be break into 81 times -1
that is 81 and -1
as per the product property
[tex]\sqrt{-81} =\sqrt{81} * \sqrt{-1}[/tex]
square root (-1) is 'i'
square root (81) is 9
[tex]\sqrt{-81} =\sqrt{81} * \sqrt{-1}[/tex]
[tex]\sqrt{-81} =9* i[/tex]
[tex]\sqrt{-81} =9i[/tex]
