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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 Choose the unit vector perpendicular to plane PQR. OA. √(¹+1) OC. (1+2j+ k) ***** (Type an exact answer, using radicals as needed.) 3.19 1 O D. √6¹2² √√6 OB. (7i+11j+ k) (2i+j+k)

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 Choose the unit vector perpendicular to plane PQR. OA. √(¹+1) OC. (1+2j+ k) ***** (Type an exact answer, using radicals as needed.) 3.19 1 O D. √6¹2² √√6 OB. (7i+11j+ k) (2i+j+k)

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 vector perpendicular to plane PQR. O A. O C. 1 1 =(i+j) www (i+2j+ k) OB. 1 3√19 (7i+11j+k) O D. √6120+1+ i+j+ k)
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 vector perpendicular to plane PQR. O A. O C. 1 1 =(i+j) www (i+2j+ k) OB. 1 3√19 (7i+11j+k) O D. √6120+1+ i+j+ k)
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