化简sin(α+180°)cos(-α)sin(-α-180°)我想知道算出的最后结果是什么?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 12:03:49
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化简sin(α+180°)cos(-α)sin(-α-180°)我想知道算出的最后结果是什么?
化简sin(α+180°)cos(-α)sin(-α-180°)
我想知道算出的最后结果是什么?
化简sin(α+180°)cos(-α)sin(-α-180°)我想知道算出的最后结果是什么?
sin(α+180°)cos(-α)sin(-α-180°)
=-sin(α)cos(α)sin(α)
=-2sin(α)sin(2α)
化简cos(540°-α)sin(α-360°)/sin(-α+180°)cos(180°+α)
sinα+cosα 化简
Cos(180°+α)*sin(α+360°)/sin(-α-180°)*cos(-180°-α)
①sin(α+180°)cos(-α)sin(-α-180°)和②sin³(-α)cos(2π+α)tan(-α-π)化简
化简:tanα(cosα-sinα)+sinα(sinα+tanα)/1+cosα.
化简sin^4x-sin^2+cos^2化简(1)sin^4x-sin^2+cos^2(2)根号(1+cosα/1-cosα)+根号(1-cosα/1+cosα)(180°<α<270°)
化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
化简,cos²(-α)-tan(360°+α)/sin(-α)
化简cos^2(-α)-[tan(360°+α)/sin(-α)]
化简(sin²α/1-cosα)-cosα
化简cos(45°-α)-sin(45°+α),得
cos(α+β)cos(α-β)+sin²β 化简
化简sin2α/sinα-cosα
化简:sinαcosαcos2α
sinαcosαcos2α化简
化简cos(α+30°)cos(α-30°)-sin(α+30°)sin(α+150°),化简cos(α+30°)cos(α-30°)-sin(α+30°)sin(α+150°),
化简:cos2α / (cosα-sinα) - sinα
化简 sin(1440°+α).cos(α-1080°﹚∕cos﹙﹣180°-α﹚.sin﹙﹣α-180°﹚