hi friends. I need the solution of all these questions Let us find the directional derivative...

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Let us find the directional derivative of (a) f-: 3.rs_ Зуг in the direction j at (1.2.3). (b) f ะ: V.e2 +1,2 in the directio

hi friends.
I need the solution of all these questions

Answer 1

Answer #1

Answer 2

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