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Unformatted text preview: ( , ) , but that for any x R 2 , the function R 1 3 t 7 f ( tx ) is differentiable at 0 R 1 . (The latter means that f has directional derivatives at ( , ) , in all directions.)...
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This note was uploaded on 05/07/2008 for the course MATH 105 taught by Professor Michaelchrist during the Spring '04 term at University of California, Berkeley.
 Spring '04
 MichaelChrist
 Math

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