Show that (x, y) = 4x1y1-7x2Y2 for vectors x = (x1, x2) and y = (V1 Y2) in R2 defines an inner product.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
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Q7. A. Show that (x, y) = 4x1)y1- 7x2y2 for vectors x = (x1, x2) and y = (y1, y2) in R2
defines an inner product.
B.
Let V be P, with the inner product given by evaluation at -2, -1, 0, 1 and 2. Let p, (t) =
2t + 3, p2(t) = 2t2 -t and P3(t) = 3t2 + 1. Find the orthogonal projection of p3 onto
%3D
the subspace spanned by p1
and
P2-
Transcribed Image Text:Q7. A. Show that (x, y) = 4x1)y1- 7x2y2 for vectors x = (x1, x2) and y = (y1, y2) in R2 defines an inner product. B. Let V be P, with the inner product given by evaluation at -2, -1, 0, 1 and 2. Let p, (t) = 2t + 3, p2(t) = 2t2 -t and P3(t) = 3t2 + 1. Find the orthogonal projection of p3 onto %3D the subspace spanned by p1 and P2-
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