MATH 3220 § 1 | FIFTH HOMEWORK ASSIGNMENT | Oct. 3, 2000 |
A. Treibergs | Due Oct. 10, 2000 |
Here are the equivalent exercises for those using the First Edition:
{(x,y) : x^{2} + y^{2} ≤ 1, (x-2)^{2} + y^{2} < 2},
and describe whether this set is relatively open, or relatively closed in the closed unit ball (B_{1}(0,0))^{-}. Do the same for the open ball of radius square root of two B_{√ 2}(2,0). Explain your answers.