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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)

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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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. +21 K) (i + 2j + k) 1 OB. 2i+j+k) B. 1 (2i +j+ k) O C. + 319 (7i + 11j + k) 1 O D. t (i+j) V2
Transcribed Image Text: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. +21 K) (i + 2j + k) 1 OB. 2i+j+k) B. 1 (2i +j+ k) O C. + 319 (7i + 11j + k) 1 O D. t (i+j) V2
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