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Mathematics, 22.11.2019 04:31 volleyballfun24

Consider a general quadratic function of two variables: q(x, y) = ax2 + by2 + cxy + dx + ey + f where a – f are constants. using the fundamental definition, show that at every point hx0, y0i such a function is everywhere differentiable

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Consider a general quadratic function of two variables: q(x, y) = ax2 + by2 + cxy + dx + ey + f whe...

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