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Let

question 26

Essay

Let Let . A) Do and exist? If so, find them. B) Use the definition of directional derivative to compute for . C) Examine whether holds, and conclude the differentiability of at the origin. .
A) Do and exist? If so, find them.
B) Use the definition of directional derivative to compute for .
C) Examine whether Let . A) Do and exist? If so, find them. B) Use the definition of directional derivative to compute for . C) Examine whether holds, and conclude the differentiability of at the origin. holds, and conclude the differentiability of at the origin.

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