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- Use the Chain Rule to evaluate the partial derivative that the point (q, r) = (2, 2), where h(u, v) = ue", u = qª, v = qr². (Use symbolic notation and fractions where needed.) dh əq \(q.r) =Both first partial derivatives of the function f(x,y) are zero at the given points. Use the second-derivative test to determine the nature of f(x,y) at each of these points. If the second-derivative test is inconclusive, so state. f(x,y) = -9х + 18ху - у + 81y; (- 3, - 3), (9,9) What is the nature of the function at (- 3, - 3)? O A. f(x,y) has neither a relative maximum nor a relative minimum at (-3, - 3). B. f(x,y) has a relative maximum at (- 3, - 3). C. f(x,y) has a relative minimum at (- 3, - 3). D. The second-derivative test is inconclusive at (- 3, – 3). What is the nature of the function at (9,9)? O A. f(x,y) has neither a relative maximum nor a relative minimum at (9,9). B. f(x,y) has a relative minimum at (9,9). O C. f(x,y) has a relative maximum at (9,9). O D. The second-derivative test is inconclusive at (9,9).Find the Partial Derivatives of the functions with respect to each variable 1 5) f(x, y) = x+y -1 -1 Ans. .-Tr+y (x+ y)}
- Find the Partial Derivatives of the functions with respect to each variable 42 Mathematies Second Year Electrical & Flectronic Enginering Department Dr. Asheer Alaa Sabri 5) f(x,y)-Use the Chain Rule to evaluate the partial derivative at the point (q, r) = (2, 3), where h(u, v) = ue" , u = q", v = qr'. (Use symbolic notation and fractions where needed.) ah dq l(g.r)Find all the second-order partial derivatives of the function f(x,y)=8x^2+7y+6x^2y^2.
- Find the first partial derivatives of the function at the point (1,2)Find the partial derivative of fy for the function * 3 f (æ,y) = (3x +y) 3r² (3x² + y²)² Option 2 6y (3x² + y²)² Option 4 3y (3x² + y²)² Option 1 2 6 (3x² + y²) ² Option 3Use the Chain Rule to evaluate the partial derivative h at the point (q, r) = (2, 3), where h(u, v) = ueº, u = qª, v = qr². да (Use symbolic notation and fractions where needed.) dh aq\(gr) =
- Use partial derivatives to find the coordinates which give the shortest distance from the point (2,0,0) to the plane 3x+2y-z=2. Confirm that the point is the shortest distance with use of second derivativesAt the point (1, −1), the function (x, y) has a derivative of 5 in the direction toward (3, 1) and a derivativeof 8 in the direction toward (1, 6).a) Find fx(1, −1) and fy(1, −1),b) Find the derivative of f at (1, −1) in the direction toward the point (−2, 4).Find the partial derivative! be sure to find f(x,0), differentiate f(x,0) and substitute 0 for x.