The pressure p p\,p in a sound wave is modeled by the function p=cosα∘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=cosα∘p = \cos \alpha^\circp=cosα∘ for −180≤α≤180-180 \leq \alpha \leq 180−180≤α≤180.
Trigonometric and Exponential Graphs Questions
Practise Edexcel GCSE Maths Trigonometric and Exponential Graphs with exam-style questions for Foundation and Higher tier. 33 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.