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Calculus and Beyond Homework Help
Find elements of a matrix such that its determinant is zero
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[QUOTE="Dick, post: 5072332, member: 65100"] Yes, there is a much easier way. Your expansion is quadratic in ##x_1## and ##x_2##. Where it's zero is a conic section as I said before. I.e. it's an ellipse, hyperbola, etc. That narrows it down a bit. Now go back to thinking about the determinant. Can you name three points on the conic section by thinking about the determinant? Can you narrow down the form of the conic by thinking more about the coefficients of the quadratic terms? [/QUOTE]
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Find elements of a matrix such that its determinant is zero
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