Report - - e-monsitepmaison.e-monsite.com/medias/files/exer-alhisab... · 2017-05-22 · 0 < sin2x < 1 sin2x - 2 O 1 < cosx 1 O < cos2x < 1 cos2x - 2 < O . cos x 1 + sin x cos x (1 - sinx)

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