Use the Dot Product to Find the Magnitude of U $\mathbf { u } = \langle 3,2 \rangle$

question 63

Multiple Choice

Use the dot product to find the magnitude of u if $\mathbf { u } = \langle 3,2 \rangle$

• A) \(\| \mathbf { u } \| =\) \(2 \sqrt { 13 }\)
• B) \(\| \mathbf { u } \| =\) \(\sqrt { 13 }\)
• C) \(\| \mathbf { u } \| = 6\)
• D) \(\| \mathbf { u } \| = 5\)
• E) \(\| \mathbf { u } \| = 7\)

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Definitions:

Overtones

Harmonic frequencies which are higher than the fundamental frequency of a sound, contributing to its timbre.

Noise

Unwanted sound or signal that interferes with the communication, detection, or measurement of a signal.

Timbre

The characteristic of a sound that sets it apart from other sounds with identical pitch and loudness.

Perception

The process by which individuals interpret and organize sensation to produce a meaningful experience of the world.