Question

Consider the points below. 

                                  P(0, -3,0), Q(5,1,-2), R(5, 2, 1) 

  (a) Find a nonzero vector orthogonal to the plane through the points P, Q, and R. 

  (b) Find the area of the triangle PQR. (Recall the area of a triangle is one-half the area of the parallelogram.)

Answer 1

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