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 and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Vectors In Two And Three Dimensions

Section9.CR: Chapter Review

Problem 8CC

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