asked 123k views
14 votes
Which choice is equivalent to the expression below?

√-81

A. √9i

B. i√9

C. 9i

D. -9

E. -√9

Which choice is equivalent to the expression below? √-81 A. √9i B. i√9 C. 9i D. -9 E-example-1
asked
User Wietlol
by
8.2k points

1 Answer

7 votes

Answer:

Explanation:

Remark

√-81 breaks down to two roots

  • √81 = 9
  • √-1 = i

Solution

√-81 = i9

Answer

C

answered
User Marouen
by
7.9k points
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.