Find the Unit Normal Vector N(t) to the Curve R $\left\langle t , 2 t , t ^ { 2 } \right\rangle$

question 20

Multiple Choice

Find the unit normal vector N(t) to the curve r (t) = $\left\langle t , 2 t , t ^ { 2 } \right\rangle$ when t = 1.

• A) \(\left\langle \frac { 1 } { 3 } , \frac { 2 } { 3 } , \frac { 2 } { 3 } \right\rangle\)
• B) \(( 1,0,0 )\)
• C)\(( 0,1,0)\)
• D) \(\left( 0 , \frac { 1 } { \sqrt { 2 } } , \frac { 1 } { \sqrt { 2 } } \right)\)
• E) \(\left( - \frac { 2 } { 3 \sqrt { 5 } } , - \frac { 4 } { 3 \sqrt { 5 } } , \frac { 5 } { 3 \sqrt { 5 } } \right)\)
• F) \(\left( \frac { 1 } { \sqrt { 2 } } , 0 , \frac { 1 } { \sqrt { 2 } } \right)\)
• G) \(\left( \frac { 1 } { \sqrt { 2 } } , \frac { 1 } { \sqrt { 2 } } , 0 \right)\)
• H) \(\left( \frac { 1 } { \sqrt { 2 } } , \frac { 1 } { \sqrt { 2 } } , \frac { 1 } { \sqrt { 2 } } \right)\)

Understand the levels of patient history and their impact on coding.

Know where to find information about modifiers and their appropriate use in the CPT manual.

Grasp the significance of patient history and medical decision-making in selecting E/M codes.

Understand the structure and purpose of HCPCS Level II codes.

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Definitions:

Respondeat Superior

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Authorized Transaction

A financial operation that has been approved or permitted by the relevant authorities or parties involved.

Estoppel

A legal principle that prevents someone from arguing something contrary to a claim they have previously made or accepted by their actions.