Whats the y=cos x -2 parrity?
y=cos x -2
parity is the state of being even or odd (there is one r in parity)
This will be an even function because
cos(x)-2=cos(-x)-2 and hence the graph is symetrical about the y axis (x=0)
See the graph
https://www.desmos.com/calculator/9otuaepx0q
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