# 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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#### Solution Summary

Graphs of Trigonometric Functions and Mean Value are investigated.

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