与双曲线x²/9—y²/16=1有共同渐近线,且过点P(-3,4倍根号下2),求双曲线标准方程.
与双曲线x²/9—y²/16=1有共同渐近线,且过点P(-3,4倍根号下2),求双曲线标准方程.
数学人气:113 ℃时间:2020-02-03 14:47:24
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答案:y²/16-x²/9=1令 x²/9—y²/16=0得:渐近线方程:y=(±4/3)x因为有共同渐近线,故设所求双曲线标准方程为:y²/(4k)^2-x²/(3k)^2=1将点P(-3,4倍根号下2),代入y²/(4k)^2-x²...
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