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Unformatted text preview: counterexample. 4. Consider the following matrix: A = 1 21 4 2 0 1 22 0 0 11 0 0 3 4 5 1 0 1 2 3 (a) Compute the determinant of A . Hint: The computations become more manageable by expanding the determinant in an appropriate way. (b) Suppose you wanted to enter the matrix A in MATLAB. Consider starting with the zero matrix of the right size: A = zeros(5,5) Write the MATLAB commands that would enter the two nonzero rows in the third row of A . 5. Let T : R 2 → R 2 be the linear transformation that corresponds to the orthogonal projection to a unit vector a making an angle of θ = 60 degrees with respect to the xaxis. Find the determinant of the matrix representing T ....
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 Spring '08
 Caddmen
 Math, Linear Algebra, Det, Compute det

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