Answer:
The positive and negative outcomes of the establishment of the Dual Monarchy is described below in detail.
Step-by-step explanation:
Positive:
- Dual monarchy happens when two separate countries are governed by the same monarch, reflect the same foreign plan, endure in a system associated with each other, and have a merged military but are differently self-regulatory. ... A dual monarchy is not significantly a personal union.
 
Negative: 
- The division continued among different countries.
 - Ethnic minorities experienced little benefit.