10.12. Orthogonal component Consider the following vectors: mathbf{w}_1 = egin{bmatrix} -3 \ -4 \ 0 end{bmatrix}, quad mathbf{w}_2 = egin{bmatrix} 52 \ -39 \ -75 end{bmatrix}, quad mathbf{v} = egin{bmatrix} 0 \ -1 \ 1 end{bmatrix} The set mathcal{B} = {mathbf{w}_1, mathbf{w}_2} is an orthogonal basis of a subspace W = Span(mathbf{w}_1, mathbf{w}_2) of mathbb{R}^3. Find a vector mathbf{n} which is orthogonal to W, and such that mathbf{v} - mathbf{n} is in W.
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To do this, we can take the cross product of W1 and W2. W1 = [5, 2, -3] W2 = [39, -75, 52] n = W1 x W2 = [(2 * 52) - (-3 * -75), (-3 * 39) - (5 * 52), (5 * -75) - (2 * 39)] Show more…
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