arg z - 1 / z + 1 = pie / 2
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z-1=π÷2×z+1
z-1=22/7÷2×z+1
z-1=22/14×z+1
14(z-1)=22z+22
14z-14=22z+22
8z=-14-22
z=-36/8
z=-9/2
z-1=22/7÷2×z+1
z-1=22/14×z+1
14(z-1)=22z+22
14z-14=22z+22
8z=-14-22
z=-36/8
z=-9/2
anchal9203:
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