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Find all points where the given function has any local extrema. Give the values of any local extrema. Identify any saddle points. f(x,y) = -

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Find all points where the given function has any local extrema. Give the values of any local extrema. Identify any saddle points. f(x,y) = - 3xy-8x2-2y2-119x -12y +5 Find the partial derivative fx fx = - 16x - 3y - 119 Find the partial derivative fy fy = - 3x -4y-12 Find the second-order partial derivative fxx- fxx = -16 Find the second-order partial derivative fyy- = Check

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