椭圆E:x^2/a^2+y^2/b^2=1(a>b>0)的右焦点F2与抛物线y^2=4x的焦点重合,过F2作与x轴垂直的
椭圆E:x^2/a^2+y^2/b^2=1(a>b>0)的右焦点F2与抛物线y^2=4x的焦点重合,过F2作与x轴垂直的直线l与椭圆交...
椭圆E:x^2/a^2+y^2/b^2=1(a>b>0)的右焦点F2与抛物线y^2=4x的焦点重合,过F2作与x轴垂直的直线l与椭圆交于S,T两点,与抛物线交于C,D两点,且|CD|/|ST|=2根号2.若过点M(2,0)的直线与椭圆E相交于A,B,设P为椭圆E上一点,且满足向量OA+向量OB=t向量OP(O为坐标原点),当|向量PA-向量PB|