已知向量a=(cosα,sinα),b=(cosβ,sinβ),a与b的夹角为60度,直线xcosα-ysinα=0与圆(x-cosβ)²+(y+sinβ)²=1/2的位置关系是 (相交)
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![已知向量a=(cosα,sinα),b=(cosβ,sinβ),a与b的夹角为60度,直线xcosα-ysinα=0与圆(x-cosβ)²+(y+sinβ)²=1/2的位置关系是 (相交)](/uploads/image/z/9622395-27-5.jpg?t=%E5%B7%B2%E7%9F%A5%E5%90%91%E9%87%8Fa%3D%EF%BC%88cos%CE%B1%2Csin%CE%B1%EF%BC%89%2Cb%3D%EF%BC%88cos%CE%B2%2Csin%CE%B2%EF%BC%89%2Ca%E4%B8%8Eb%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA60%E5%BA%A6%2C%E7%9B%B4%E7%BA%BFxcos%CE%B1-ysin%CE%B1%3D0%E4%B8%8E%E5%9C%86%EF%BC%88x-cos%CE%B2%EF%BC%89%26%23178%3B%2B%EF%BC%88y%2Bsin%CE%B2%EF%BC%89%26%23178%3B%3D1%2F2%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%85%B3%E7%B3%BB%E6%98%AF+%EF%BC%88%E7%9B%B8%E4%BA%A4%EF%BC%89)
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