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14-07-2021
Mathematics

contestada

Which of the following is equivalent to the expression below?
Square root of -81
A. 9
B. -9
C. 9i
D. -9i

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

14-07-2021

Answer:

C 9i

D -9i

Step-by-step explanation:

sqrt(-81)

sqrt(81) sqrt(-1)

we know that sqrt(-1) = i

±9i

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