IT 1. angle btun u and v 18 T , and llull>I Ilvil=2. them the cosine of the angle betveen u-v and utv is:

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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Need help to find the cosine of the angle, thank you!

l. angle bt wn u and v is T, and llwll>I
Ilvil=2. then the cosine of the
angle betveen
ル-v and wtV is:
al
6)
c)
el NONE
Transcribed Image Text:l. angle bt wn u and v is T, and llwll>I Ilvil=2. then the cosine of the angle betveen ル-v and wtV is: al 6) c) el NONE
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