Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR P(1, - 1,2), Q(2,0, - 1), R(0,2,1) The area of the triangle is (Type an exact answer, using radicals as needed.) Choose the unit vectors perpendicular to plane PQR. 1 O A. (i+ 2j + k) 1 В. + (2i + j+ k) V6 1 O C. ± (7i + 11j + k) 3 19 OD. ) V5 (i +j)
Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR P(1, - 1,2), Q(2,0, - 1), R(0,2,1) The area of the triangle is (Type an exact answer, using radicals as needed.) Choose the unit vectors perpendicular to plane PQR. 1 O A. (i+ 2j + k) 1 В. + (2i + j+ k) V6 1 O C. ± (7i + 11j + k) 3 19 OD. ) V5 (i +j)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.3: Vectors
Problem 31E
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