2²y. 3. Consider the function f(, y) =

Elementary Linear Algebra (MindTap Course List)
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Chapter5: Inner Product Spaces
Section5.1: Length And Dot Product In R^n
Problem 17E: Consider the vector v=(1,3,0,4). Find u such that a u has the same direction as v and one-half of...
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Just need an answer to part e. Thanks

3. Consider the function f(x, y) = x²y.
(a) Use linear approximation to estimate (2.96, 1.03).
(b) Find D7f (3, 1) in the direction of the vector making an angle of 30° with the horizontal.
(c) Find a unit vector such that D7f(3, 1) = 0.
(d) How many correct answers are there to the previous question.
(e) Is there a direction w such that D f(3, 1) = 20? Explain your answer.
Transcribed Image Text:3. Consider the function f(x, y) = x²y. (a) Use linear approximation to estimate (2.96, 1.03). (b) Find D7f (3, 1) in the direction of the vector making an angle of 30° with the horizontal. (c) Find a unit vector such that D7f(3, 1) = 0. (d) How many correct answers are there to the previous question. (e) Is there a direction w such that D f(3, 1) = 20? Explain your answer.
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