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Unformatted text preview: a =  i + 3 k , b = j k using the determinant method (b) Draw a 3D diagram using right handed axes and draw on it the vectors a , b and a b Question 4  1 Given a triangle with one corner O at the origin and the other two corners are P = (3, 4, 2) and Q = (3, 0, 3) (a) Find the vectors OP and OQ and PQ (b) Use the cross product to find a vector perpendicular to both OP and OQ (c) Use your answer to (b) to find the area of the triangle PQR. Question 4  2 Given a triangle with one corner O at the origin and the other two corners are P = (1, 3, 2) and Q = (3, 1, 0) (a) Find the vectors OP and OQ and PQ (b) Use the cross product to find a vector perpendicular to both OP and OQ (c) Use your answer to (b) to find the area of the triangle PQR. 1201BPS 2...
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 Three '11
 MariaAneiros
 Math, Determinant, Vectors

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