由题意设椭圆方程
x^2/a^2+y^2/b^2=1(a>b>0)
e=√3/2
c/a=√3/2
c^2/a^2=3/4
(a^2-b^2)/a^2=3/4
a^2=4b^2
椭圆方程x^2/(4b^2)+y^2/b^2=1
P(2,2√2)代入得
1/b^2+8/b^2=1
9/b^2=1
b^2=9
椭圆方程x^2/36+y^2/9=1
由题意设椭圆方程
x^2/a^2+y^2/b^2=1(a>b>0)
e=√3/2
c/a=√3/2
c^2/a^2=3/4
(a^2-b^2)/a^2=3/4
a^2=4b^2
椭圆方程x^2/(4b^2)+y^2/b^2=1
P(2,2√2)代入得
1/b^2+8/b^2=1
9/b^2=1
b^2=9
椭圆方程x^2/36+y^2/9=1