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## real analysis

Real & Complex Analysis, Calculus & Multivariate Calculus, Functional Analysis,
Asis ghosh
Articles: 0
Posts: 9
Joined: Mon Feb 05, 2018 4:22 am

### real analysis

Let $A,B\subset\mathbb{R}$ nonempty. Define
1. Let $A=[-1,2]=B$. What is $A+B$?
2. Let $A=B=\mathbb{N}$. What is $A+B$?
3. Let $A=B=\mathbb{Z}$. What is $A+B$?
4. Let $A=B=\mathbb{Q}$. What is $A+B$?
5. Let $A=B=\mathbb{R}\setminus\mathbb{Q}$. What is $A+B$?