October 2021 1 8 Report

упростить a)cos(-a)-cos(п-а) b)sin(90°-a)-cos(180°-a)+tg(180-a)-ctg(270°+a) c)cos100°+sin530° d)3tg930°+sin1200°-cos1410° e)sin(-13п/6)+cos17п/3+tg(22п/3)-ctg(37п/4) f)sin(3п/2-а/2) / cos(3п/2-а/2)

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