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Mathematics, 24.07.2019 18:20 ofkameron50

Find the directions in the xy-plane in which the function f left parenthesis x comma y right parenthesisequals15 minus 2 x squared minus 4 y squared has zero change at the point pleft parenthesis negative 2 comma negative 1 comma negative 9 right parenthesis. express the directions in terms of unit vectors.

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Find the directions in the xy-plane in which the function f left parenthesis x comma y right parenth...
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