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1+sin2x=(sinx+coxx)?
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在三角形ABC中,角A,角B,角C所对边分别为a,b,c.已知向量m=(1,cosA),向量n=(1,2),且向量m×向量n=1)求角A大小.(2)若a=2根号3,c=2,求三角形ABC的面积!求详解
【组句is,three,since,years,I,moved,beis,vinegar,in,some,bottle,there,themy,London,used,live,to,in,auntshe,as,not,as,brother,clever,so,her,isswim,as,he,used,often,he,to,not,so选择填空Don'tfilltheglass()wateranylonger.It'sfull.AwithBbyC】