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If arg ( z - 1) = arg (z + 3i), then fin...

If arg `( z - 1) = arg (z + 3i), then find x - 1 : y, where z = x + iy` ,

A

`2:1`

B

`1:3`

C

`-1:3`

D

None of these

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The correct Answer is:
B
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