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Simplify suqrt. -81 A) -9i B) 9i C) -9 D) 9

Simplify suqrt. -81 A) -9i B) 9i C) -9 D) 9
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5 votes
Simplify suqrt. -81

A) -9i
B) 9i
C) -9
D) 9

Simplify suqrt. -81 A) -9i B) 9i C) -9 D) 9-example-1
asked
User Zatamine
by
7.3k points

1 Answer

5 votes

Answer:

9i

Explanation:

sqrt(-81) can be expanded to sqrt(-1) × sqrt(81).

sqrt(-1) = 'i' and the sqrt(81) is 9.

sqrt(-81) = 9i

answered
User Bluesight
by
6.8k points
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