The answer for your question is B. 5
Trigonometry functions is often employed in taking the measurement of the level or the pitch of a sound wave or musical note.
The change of amplitude of a sound wave's amplitude is linked to the change in pressure that occurs due to the wave measured at a given location.
Frequency tells the number of waves that pass a fixed location in a specific time frame.
<h3>How does sound waves relate to trigonometric functions?</h3>
Sound engineers uses the basic laws of trigonometry via sine and cosine graphs.
Note that all sounds can be broken down into a lot of sine waves, as sine waves comes together to form sounds.
Therefore, Trigonometry functions is often employed in taking the measurement of the level or the pitch of a sound wave or musical note.
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Answer:
∠one and ∠seven
Step-by-step explanation:
The value maximizes angle APB.
In this question we need to determine the <em>maximum possible</em> angle APB, which can be determined by definition of dot product, that is to say:
(1)
Where:
- , - Magnitudes of and .
- - Internal angle, in sexagesimal degrees.
The magnitudes of each are respectively defined by line segment length formula: , ,
(2)
(3)
By (1), (2) and (3) we have the following expression:
(4)
From geometry we know that sum of internal angles in triangles equals 180°, which means that angle APB must meet this condition:
In addition, we know that <em>cosine</em> function is a bounded function between -1 and 1, where , ,
A quick approach consists in graphing (4) against x. Outcome is described in the second image attached. By direct inspection, we see that maximizes angle APB.
We kindly invite to check this question on optimization: brainly.com/question/4302495
Answer:
d
Step-by-step explanation: