Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2}, {a,1,2}}. Let B = {b,3} * O B is dense in (X,T) O B is closed in (X,T) O B is open in (X,T) O None of the choices

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A: the answer is 4 see the calculation

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Q: Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2}, {a,1,2}}. Let B = {b,3} * B is dense in (X,T) B…

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A: First try is finding maximum  Luckily we got maximum therefore that became as an supreme

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A: please comment if you need any clarification. If you find my answer useful please put thumbs up.…

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Q: 1. Let z, y € R" be given. (a) If ||z|| = ||y|| = 1 and z-y = 1, show that z = y. (b) If ||z|| ≤ 1…

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Q: 1. Let 1, y € R" be given. (a) If ||z|| = ||y|| = 1 and z-y = 1, show that z = y. (b) If ||z|| ≤ 1…

A: \documentclass{article}\usepackage{amsmath,amssymb}\begin{document} (a) Norm x=Norm y=1\\ Let angle…

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Q: Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2}, %3D %3D {a,1,2}}. Let B = {b,3} * %3D B is dense…

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A: SOLUTION-