SOLUTION: If z^2<0&#65292; then which of the following could be z&#65311; A.-3 B.1-i C.2i D.1/sqrt2

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: If z^2<0&#65292; then which of the following could be z&#65311; A.-3 B.1-i C.2i D.1/sqrt2      Log On


   

Question 1004373: If z^2<0， then which of the following could be z？
A.-3 B.1-i C.2i D.1/sqrt2
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
For a number squared to be less than zero, that means it has to be a pure imaginary number...the only one here is
Choice C.