Find the Directional Derivative Of $f ( x , y , z ) = x ^ { 2 } + y ^ { 2 } - z$

question 186

Short Answer

Find the directional derivative of $f ( x , y , z ) = x ^ { 2 } + y ^ { 2 } - z$ at the point $( 1,3,5 )$ in the direction of $\mathbf { a } = 2 \mathbf { i } - \mathbf { j } + 4 \mathbf { k }$

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Definitions:

Generalized Anxiety

A disorder characterized by persistent and excessive worry about a number of different things, often disproportionate to the actual source of worry.

Neuroanatomy

The branch of anatomy that studies the structure and organization of the nervous system.

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the brain.