• 2022-06-09
    试求抛物线[tex=6.429x1.5]qqSqNimEYJ+hqvJBOaXY9TrCCpEcQWd3WqMpCAOVmpI=[/tex]上任一点[tex=9.214x1.357]HJ79lH2q79Sm6C2Q0jpADDpMpvYQEIEkd0BV5rfhBL4=[/tex]处的切线斜率,并证明:从抛物线的焦点[tex=3.929x2.214]f3kqmBWmbWOty583aBypHb7XvAeDlK/Tvay9AgN09eLlCTBFFg93MKllTCcsowqM[/tex]发射光线时,其反射线一定平行于[tex=0.571x0.786]c5VsltFnl9nO0qB/vNKOWA==[/tex]轴.[img=333x243]1789bc3a6bf572b.jpg[/img]
  • 举一反三