2. Let T be the cofinite topology on R, and let A = (-x, 1) U (1, ), B = (1,2). Fine the boundary and the interior of the sets A and B in (IR, T). You may use parts (i and (ii) of Example 2 from Lecture 16.

2. Let T be the cofinite topology on R, and let A = (-x, 1) U (1, ), B = (1,2). Fine the boundary and the interior of the sets A and B in (IR, T). You may use parts (i and (ii) of Example 2 from Lecture 16.

Elementary Linear Algebra (MindTap Course List)

8th Edition

ISBN:9781305658004

Author:Ron Larson

Publisher:Ron Larson

Chapter5: Inner Product Spaces

Section5.2: Inner Product Spaces

Problem 94E

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Question

2. Let T be the cofinite topology on R, and let A = (-x, 1) U (1, ), B = (1,2). Fine
the boundary and the interior of the sets A and B in (IR, T). You may use parts (i
and (ii) of Example 2 from Lecture 16.

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