Let $f ( x , y , z ) = \sqrt { 2 x + 3 y - z }$

question 89

Essay

Let $f ( x , y , z ) = \sqrt { 2 x + 3 y - z }$ . Find the rate of change of $f$ at the point $( 1,1 , - 4 )$ in the direction $\mathbf { u }$ where $\mathbf { u }$ is a unit vector making an angle $\theta = 150 ^ { \circ }$ with $\nabla f$ .

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Definitions:

Cash Disbursement Transactions

Financial activities involving the payment of cash from a business to vendors, employees, or other entities.

Authorized

Refers to having official permission or approval, often in the context of legal or financial operations that have been ratified or sanctioned by a governing body or higher authority.

Bank Service Charge

Fees charged by a bank for the maintenance of an account and for providing various banking services.