Question

1) Sketch proper figure and write the answers of the following questions,
a) If X - Y - Z and /(XZ) = 5 V7, /(XY) =V7, then /(YZ) = ?​

Answer 1

Step-by-step explanation:

if z is complex number where z is not equal to 1 and z-1/z+1 is a pure imaginary number