arg(bar(z))+arg(-z)={{:(pi",","if arg (z...

`arg(bar(z))+arg(-z)={{:(pi",","if arg (z) "lt 0),(-pi",", "if arg (z) "gt 0):},"where" -pi lt arg(z) le pi`.
If `arg(4z_(1))-arg(5z_(2))=pi, " then " abs(z_(1)/z_(2))` is equal to

A

1

B

1.25

C

1.5

D

2.5

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The correct Answer is:

B

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