Express the Sum Using Summation Notation

question 21

Multiple Choice

Express the sum using summation notation.
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Definitions:

Frequency

In the context of waves, it is the number of waves that pass a fixed point per second; in general use, it refers to how often something occurs.

Intensity

The degree of strength, force, energy, or feeling in a given situation, often used in various physical and emotional contexts.

Sound Waves

Sounds that move through air or different mediums and become audible when they arrive at an individual's or animal's ear.

Greater-Amplitude

Pertains to signals or waves with higher magnitude or intensity, often used in the context of physical or biological measurements.