find the domain and range of cos x before that construct the table for x and y
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The minimum value that cos x can be is –1, which occurs at an angle of Sketch the graph of the function. with the five key points plotted. The cosine parent graph has a couple of characteristics worth noting: It repeats every 2-pi radians. This repetition means it’s a periodic function, so its waves rise and fall in the graph.
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