(3) Let R² and R be endowed with their Euclidean metrics. (a) Show that projections p₁(x, y) = x and p₂(x, y) = y are continuous. (b) Show that the direct image of an open set under p₁ or på is open.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
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(3) Let R² and R be endowed with their Euclidean metrics.
(a) Show that projections p₁(x, y) = x and p₂(x, y) = y are continuous.
(b) Show that the direct image of an open set under p₁ or på is open.
Transcribed Image Text:(3) Let R² and R be endowed with their Euclidean metrics. (a) Show that projections p₁(x, y) = x and p₂(x, y) = y are continuous. (b) Show that the direct image of an open set under p₁ or på is open.
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