let x be at Plogy space and Suppoes that anbhd bea basic has been fixed at Cachxe X Prove that Fr={xex/each basicnbhdofx € meets both A and A. ASX is open ifs A con tians abasic nbhd of each its point, ③If A EN (x) then there exist B EN(X) and BCA ST AEN(Y) for each yeB. Can you create a toplogy from nbhd basic with prove.

let x be at Plogy space and Suppoes that anbhd bea basic has been fixed at Cachxe X Prove that Fr={xex/each basicnbhdofx € meets both A and A. ASX is open ifs A con tians abasic nbhd of each its point, ③If A EN (x) then there exist B EN(X) and BCA ST AEN(Y) for each yeB. Can you create a toplogy from nbhd basic with prove.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter4: Polynomial And Rational Functions

Section4.3: Zeros Of Polynomials

Problem 62E

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