Write Out the Sum $$\sum _ { k = 1 } ^ { 4 } \left( k ^ { 2 } - 4 k - 3 \right)$$

question 130

Multiple Choice

Write out the sum. Do not evaluate.
- $$\sum _ { k = 1 } ^ { 4 } \left( k ^ { 2 } - 4 k - 3 \right)$$

• A) \(1 - 6 - 7 - 6\)
• B) \(- 6 - 7 - 6 - 3\)
• C) \(- 6 - 7 - 6 - 3 + \ldots\)
• D) \(- 6 + 7 - 6 + 3\)

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Definitions:

Bundle of His

A collection of heart muscle cells specialized for electrical conduction that transmits impulses from the AV node to the ventricles of the heart.

Diastolic Murmur

A heart murmur heard during the diastole phase of the cardiac cycle, often indicating a valve disorder.

Systolic Murmur

A heart murmur occurring during the systolic phase of the cardiac cycle, often indicating an underlying heart condition.

Precordium

The region on the anterior surface of the body covering the heart and lower part of the thorax.