# Use the table of values of f x y to estimate the

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Use the table of values of f ( x , y ) to estimate the values of f x (3, 2), f x (3, 2.2), and f xy (3, 2). y 1.8 2.0 2.2 x 2.5 12.5 10.2 9.3 3.0 18.1 17.5 15.9 3.5 20.0 22.4 26.1 Solution or Explanation Click to View Solution 3. 1/1 points | Previous Answers SCalcET7 14.3.076. Determine whether each of the following functions is a solution of Laplace's equation u xx + u yy = 0. (Select all that apply.) u = x 2 y u = x 3 + 3 xy u = e x cos y e y cos u = ln x 2 + y y 2 2 2 x 2
13. 11. 9. HW #9 3/5 4. 0/0 points | Previous Answers Verify Clairaut's Theorem for . Click to see a solution. Solution or Explanation Simply compute the partial derivatives to confirm 5. 1/1 points | Previous Answers SCalcET7 14.3.100. If find 0 0 Solution or Explanation Click to View Solution 6. 1/1 points | Previous Answers SCalcET6 14.4.005. Find an equation of the tangent plane to the given surface at the specified point. z = y cos( x - y ), ( -1 , -1 , z = -1 ) Solution or Explanation Click to View Solution f ( x , y ) = e xy sin y show me f xy = f yx = x y e xy sin y + y e xy cos y + e xy sin y f ( x , y ) = , x 3 + y 3 3 f x ( 0 , 4 ).
13. 11. 9. HW #9 4/5 7. 0/0 points | Previous Answers Explain why the function