Find the Indicated Sum $\frac { 1 } { 2 } , - 1,2 , - 4,8 , \ldots$

question 19

Multiple Choice

Find the indicated sum.
-Find the sum of the first 13 terms of the geometric sequence: $\frac { 1 } { 2 } , - 1,2 , - 4,8 , \ldots$

• A) \(\frac { 2729 } { 2 }\)
• B) 1369
• C) \(\frac { 2725 } { 2 }\)
• D) \(\frac { 2731 } { 2 }\)

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Definitions:

Laryngectomy

A surgical procedure to remove the larynx, often due to cancer, which may result in the loss of voice.

Laryngoscope

A medical instrument used to obtain a view of the vocal folds and the glottis, which is the space between the vocal cords.

Laryngoscopy

A diagnostic procedure that uses a special instrument called a laryngoscope to view the throat and larynx.

Pertussis

A highly contagious bacterial disease also known as whooping cough, characterized by intense coughing fits.