`(3 angle 20^text(o))/(9 angle 60^text(o))` `=3/9angle(20^text(o)-60^text(o))=1/3angle-40^text(o)`

In this section, we normally leave our answer as a positive angle, so since -40° = 360° − 40° = 320°, we write :

`(3 angle 20^text(o))/(9 angle 60^text(o))=1/3angle320^text(o)`

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