Let X= (1, 2] u {3,4,5,.} and A={2,4,5} and metric defined on |X as d(x,y) = |x - y %3D Find interior of A (1) Find limit points of A (2) Find open ball B(3,2) (3) explain if A is closed or not (4) explain if (A,d) is a complete (5) subspace of (X,d)

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