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8. Consider the gradph of the function f(x, y) = x² - 5xy given by z = x² - 5xy F (a) ( (1,2). Find an equation of the tangent plane to the surface at the point Po = (b) Find the vector equation of the normalline to the surface at the point Po= (1,2).

8. Consider the gradph of the function f(x, y) = x² - 5xy given by z = x² - 5xy F (a) ( (1,2). Find an equation of the tangent plane to the surface at the point Po = (b) Find the vector equation of the normalline to the surface at the point Po= (1,2).

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8. Consider the gradph of the function f(x, y) = x² - 5xy given by z = x² - 5xy F (a) ( (1,2). Find an equation of the tangent plane to the surface at the point Po = (b) Find the vector equation of the normalline to the surface at the point Po= (1,2).
Transcribed Image Text:8. Consider the gradph of the function f(x, y) = x² - 5xy given by z = x² - 5xy F (a) ( (1,2). Find an equation of the tangent plane to the surface at the point Po = (b) Find the vector equation of the normalline to the surface at the point Po= (1,2).

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