焦点在x轴上设双曲线为x^2/a^2-y^2/b^2=1渐进线方程是y=±(b/a)x∴b/a=1/2a=2b∴双曲线为x^2/4b^2-y^2/b^2=1将（4,-√3）代入得16/4b^2-3/b^2=14/b^2-3/b^2=11/b^2=1b^2=1a^2=4∴双曲线方程是x^2/4-y^2=1附昨天你问...