Question 1202e

Vectors I: Basics, Dot and Cross Products
Area of Triangles and Parallelograms

Question

Given the points A(1,5,1){A \left( - 1, 5, 1 \right)} and B(2,1,4),{B \left( 2, - 1, 4 \right),} what is area of the triangle OAB?{OAB?}

Attempt

Area ={\textrm{Area } =}

Answer

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