Question: Please help for J7 a b J.7 (The 2D cross product) Recall: If A = a b then C = det(A) = ad - bc.

Please help for J7

a b J.7 (The "2D cross product") Recall: If A = a b then C = det(A) = ad - bc. Let V = 6) and in = 12 Since v, w are 2-dimensional, v x w is not defined. First, "embed" v, w into R3 by defining V = b and W = d Then compute V x W, and express it in terms of det(A). Note that you get the same answer if you define V = and W = transpose is involved

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