1/2 of sin(2x)
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(cosx)^2-(sinx)^2
x can go to + or - infinity. f(x) is limited from + 1/2 to - 1/2.
(x+sinxcosx)/2, can do it by parts or by knowing your double angle formulas
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Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.