Formule di duplicazione [Trigonometria]

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  1. <Petrosyan>
    view post Posted on 29/5/2009, 16:50
     
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    User deleted
    Formule di duplicazione






    sin2b = 2 sinb cosb

    cos2b = cos2b - sin2b = 1 - 2sin2b = 2cos2b - 1

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0 replies since 29/5/2009, 16:50   257 views
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