3. Find the angles a, ß,y, which the vector Á = 3î – 6î + 2k makes with the coordinates axes and also show that cos?a + cos²ß + cos²y = 1. %3|

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.3: Vectors
Problem 34E
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3. Find the angles a, ß,y, which the vector Á
= 3î –
6î + 2k makes with the coordinates axes and also
show that cos?a + cos²ß + cos²y = 1.
%3|
Transcribed Image Text:3. Find the angles a, ß,y, which the vector Á = 3î – 6î + 2k makes with the coordinates axes and also show that cos?a + cos²ß + cos²y = 1. %3|
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