Given u e R" with u u = 1, let P = u u and Q = I- 2P. Justify statements: а) Р2 — Р, b) PT = P; c) Q? = I. %3D %3D

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter2: Parallel Lines
Section2.4: The Angles Of A Triangle
Problem 30E: Given: Equiangular RST Prove: RV bisects SRT RVS is a right
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Given u e R" with uu = 1, let P= d u and Q = I- 2P. Justify statements:
а) Р2 — Р;
PT = P;
b)
c) Q? = I.
Transcribed Image Text:Given u e R" with uu = 1, let P= d u and Q = I- 2P. Justify statements: а) Р2 — Р; PT = P; b) c) Q? = I.
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