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    Graphs of Trigonometric Functions and Mean Value

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    (a) Sketch the graph of y = cos X in the range - π ≤ X ≤ π. π="pi"

    Hence sketch the graph of y = cos X in the same range.

    (b) Find the mean value of y = cos X in the range - π ≤ X ≤ π

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    https://brainmass.com/math/trigonometry/graphs-of-trigonometric-functions-and-mean-value-112498

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    Graphs of Trigonometric Functions and Mean Value are investigated.

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