Which statement is true? ОА. The function (1) sin(r) is an even function because its graph is symmetric about the origin.
ОВ. The function (0) cos(x) Is an odd function because f(-x) = |().
OC. The function (1) = cos(t) is an even function because its graph is symmetric about the origin.
OD. The function (1) = sin(x) is an odd function because f(-x) = -f(x).