如图,将直线y=﹣x沿y轴向下平移后的直线恰好经过点A(2,﹣4),且与y轴交于点B,在x轴上存在一点P使得PA+PB的值最小,则点P的坐标为____.
— I have a .
— Maybe you should see a dentist.
已知sinα<cosα,那么锐角α的取值范围是( )