If the point corresponding to the complex z = (m-1) + (M & # 178; - 4) I (m ∈ R) in the complex plane is in the fourth quadrant, then M is in the range

If the point corresponding to the complex z = (m-1) + (M & # 178; - 4) I (m ∈ R) in the complex plane is in the fourth quadrant, then M is in the range

Because the complex number is in the fourth quadrant
So M-1 > 0
M²-4<0
The solution is m > 1
-2<M<2
So 1 < m < 2
Answer: 1 < m < 2