点A是椭圆x²/a²+y²/b²=1短轴上位于X轴下方的顶点点A是椭圆x²/a²+y²/b²=1(a>b>0)短轴上位于X轴下方的顶点,过A作斜率为1的直线交椭圆于P点,B点在Y轴上且BP//X轴,向量AB
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![点A是椭圆x²/a²+y²/b²=1短轴上位于X轴下方的顶点点A是椭圆x²/a²+y²/b²=1(a>b>0)短轴上位于X轴下方的顶点,过A作斜率为1的直线交椭圆于P点,B点在Y轴上且BP//X轴,向量AB](/uploads/image/z/7809858-18-8.jpg?t=%E7%82%B9A%E6%98%AF%E6%A4%AD%E5%9C%86x%26%23178%3B%2Fa%26%23178%3B%2By%26%23178%3B%2Fb%26%23178%3B%3D1%E7%9F%AD%E8%BD%B4%E4%B8%8A%E4%BD%8D%E4%BA%8EX%E8%BD%B4%E4%B8%8B%E6%96%B9%E7%9A%84%E9%A1%B6%E7%82%B9%E7%82%B9A%E6%98%AF%E6%A4%AD%E5%9C%86x%26%23178%3B%2Fa%26%23178%3B%2By%26%23178%3B%2Fb%26%23178%3B%3D1%EF%BC%88a%3Eb%3E0%EF%BC%89%E7%9F%AD%E8%BD%B4%E4%B8%8A%E4%BD%8D%E4%BA%8EX%E8%BD%B4%E4%B8%8B%E6%96%B9%E7%9A%84%E9%A1%B6%E7%82%B9%2C%E8%BF%87A%E4%BD%9C%E6%96%9C%E7%8E%87%E4%B8%BA1%E7%9A%84%E7%9B%B4%E7%BA%BF%E4%BA%A4%E6%A4%AD%E5%9C%86%E4%BA%8EP%E7%82%B9%2CB%E7%82%B9%E5%9C%A8Y%E8%BD%B4%E4%B8%8A%E4%B8%94BP%2F%2FX%E8%BD%B4%2C%E5%90%91%E9%87%8FAB)
点A是椭圆x²/a²+y²/b²=1短轴上位于X轴下方的顶点点A是椭圆x²/a²+y²/b²=1(a>b>0)短轴上位于X轴下方的顶点,过A作斜率为1的直线交椭圆于P点,B点在Y轴上且BP//X轴,向量AB
点A是椭圆x²/a²+y²/b²=1短轴上位于X轴下方的顶点
点A是椭圆x²/a²+y²/b²=1(a>b>0)短轴上位于X轴下方的顶点,过A作斜率为1的直线交椭圆于P点,B点在Y轴上且BP//X轴,向量AB与向量AP的数量积=9
(1)若B(0,1)求椭圆方程
(2)若B(0.t),求t的取值范围
点A是椭圆x²/a²+y²/b²=1短轴上位于X轴下方的顶点点A是椭圆x²/a²+y²/b²=1(a>b>0)短轴上位于X轴下方的顶点,过A作斜率为1的直线交椭圆于P点,B点在Y轴上且BP//X轴,向量AB
(1) X^2/12+y^2/4=1
3=a
2x-5=y
5-x=y 1
解,当y=2X一5时
5一x=2x-5+1
5十5一1=x+2x
9=3x
x=3
2x一5=1=y