Which statement is true? A. The function f(x) = cos(x) is an even function because its graph is symmetric about the


Which statement is true?
A. The function f(x) = cos(x) is an even function because its graph is symmetric about the origin.
B. The function f(x) = sin(x) is an odd function because f(-x) = -f(x).
C. The function f(x) = cos(x) is an odd function because f(-x) = f(x)
D. The function f(x) = sin(x) is an even function because its graph is symmetric about the origin.


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