In Exercises 15–18, a. Find the area of the triangle determined by the points P, Q, and R. b. Find a unit vector perpendicular to plane PQR. 15. Р(1,—1, 2), Q(2,0, —1), R(0, 2, 1) 16. Р(1, 1, 1), 02, 1, 3), R(3, -1, 1) 17. Р(2, —2, 1), Q(3, —1, 2), R(3, —1, 1) 18. Р-2, 2, 0), 0(0, 1, —1), R-1, 2, -2)
In Exercises 15–18, a. Find the area of the triangle determined by the points P, Q, and R. b. Find a unit vector perpendicular to plane PQR. 15. Р(1,—1, 2), Q(2,0, —1), R(0, 2, 1) 16. Р(1, 1, 1), 02, 1, 3), R(3, -1, 1) 17. Р(2, —2, 1), Q(3, —1, 2), R(3, —1, 1) 18. Р-2, 2, 0), 0(0, 1, —1), R-1, 2, -2)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.2: Length And Angle: The Dot Product
Problem 12EQ: In Exercises 7-12, find u for the given exercise, and give a unit vector in direction of u. Exercise...
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