(1)x^2/10+y^2/6=1.易知c^2/a^2=2/5,则b^2=3/5a^2,得:x^2/a^2+5y^2/3=1.将A点代入,得:a^2=10,b^2=6,c^2=4.得出答案.
(2)先设直线(y=kx+m),求出A到直线的距离表达式,再求相交弦距表达式,再得出面积表达式.
(1)x^2/10+y^2/6=1.易知c^2/a^2=2/5,则b^2=3/5a^2,得:x^2/a^2+5y^2/3=1.将A点代入,得:a^2=10,b^2=6,c^2=4.得出答案.
(2)先设直线(y=kx+m),求出A到直线的距离表达式,再求相交弦距表达式,再得出面积表达式.