If f ( x) = x for L < x < L, and if f ( x + 2L) = f ( x), find a formula for f ( x) in
Chapter 10, Problem 9(choose chapter or problem)
If f ( x) = x for L < x < L, and if f ( x + 2L) = f ( x), find a formula for f ( x) in the interval L < x < 2L; in the interval 3L < x < 2L.
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