(a) Find a nonzero vector orthogonal l to the plane the points P, Q, and R, and (b) find the area of triangle PQR. P(1 , 0, 1), Q(- 2,1, 3), R(4, 2, 5)

area-of-triangle
nonzero-vector

#1

**(a) Find a nonzero vector orthogonal l to the plane the points P, Q, and R, and **
(b) find the area of triangle PQR.
P(1 , 0, 1), Q(- 2,1, 3), R(4, 2, 5)

Answer:

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