Trigonometric and Exponential Graphs

EasyMedium
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Question 4
Medium

The pressure p p\,p in a sound wave is modeled by the function p=cos⁡α∘p = \cos \alpha^\circp=cosα∘, where α \alpha\,α is the phase angle in degrees.

Sketch the graph of p p\,p against α \alpha\,α for −180≤α≤180-180 \leq \alpha \leq 180−180≤α≤180.

On the axes provided, sketch the graph of p=cos⁡α∘p = \cos \alpha^\circp=cosα∘ for −180≤α≤180-180 \leq \alpha \leq 180−180≤α≤180.

A coordinate system with the horizontal axis alpha from -180 to 180 in increments of 90 and the vertical axis p from -1 to 1.

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Trigonometric and Exponential Graphs Questions

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