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6. Let f(x,y) = (x+y)* (). Find the directions u and the values of Duf (-2) for which d. Duf (-) = -2 a.
6. Let f(x,y) = (x+y)* (). Find the directions u and the values of Duf (-2) for which d. Duf (-) = -2 a. Duf (-) is largest b. Duf (-) is smallest C. Duf (-) = 0 e. Duf (-1,2)= = 1.
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College Algebra
Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
12th edition
134697022, 9780134313795 , 978-0134697024
