- #1
MechanicalBrank
- 9
- 0
Homework Statement
D1 = {(x,y) : x^2 + y^2 < 3, x+2y = 2}
D2={(x,y) : x^2 + y^2 > 2}
D3={(x,y) : x + 2y = 2}
Homework Equations
The Attempt at a Solution
D1 is neither, D2 is open and D3 is closed, am I right or wrong?