Rotate the vector corresponding to the complex z = 2-I 90 degrees counter clockwise, what is the corresponding complex number In addition, tell me the vector corresponding to the complex z = 2-I
If the positive direction of the real axis is 0 degrees, 2-I is - 30 degrees. If you turn 90 degrees counterclockwise, you will get + 60 degrees, and its length remains the same, it is still root 3, so it is 1 + 2I
RELATED INFORMATIONS
- 1. A sufficient and necessary condition for Z ∈ R is that z = Z conjugate? Right? And a sufficient and necessary condition for Z to be an imaginary number is that Z + Z conjugate belongs to R pair RT
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