Find the unit vector orthogonal to the plane through the points P ( 12, 3, -4 ), Q (-1, -2, 2), and R (3,1, -3). Also find the area of triangle PQR. 3.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 32E
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3.
Find the unit vector orthogonal to the plane through the points P ( 12, 3, -4 ), Q (-1, -2, 2),
and R (3,1, -3). Also find the area of triangle PQR.
4.
Given that: A = Axâx + Ayay+ Azaz , B= Bxax + Byay+Bzaz prove that A×B is orthogonal to
Transcribed Image Text:3. Find the unit vector orthogonal to the plane through the points P ( 12, 3, -4 ), Q (-1, -2, 2), and R (3,1, -3). Also find the area of triangle PQR. 4. Given that: A = Axâx + Ayay+ Azaz , B= Bxax + Byay+Bzaz prove that A×B is orthogonal to
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