1. Simplify the equation:
Z = \frac{1 - 2Ki}{Ki}
Z = \frac{1}{Ki} - \frac{2Ki}{Ki}
Z = \frac{1}{Ki} - 2
\frac{1}{Ki}=\frac{-i}{K}
Z=\frac{-i}{K}-2
2. For \(Z\) to be real:
The imaginary part must be zero:
\frac{-i}{K} = 0
Which happens when:
K \to \infty
Therefore, \(Z\) becomes:
Z = -2
Answer:
\boxed{K \to \infty}
3. For \(Z\) to be purely imaginary:
The real part must be zero:
-2 = 0
This is impossible.
Answer:
\boxed{\text{no finite } K}