1.等差数列an的S15=m,对于n∈N+,都有an>a(n+1),且a2,a8是x^2-12x+m=0的两根,则an的公差为?2.若双曲线x^2/a^2-y^2/b^2=1(a,b>0)右支上存在点P,满足|PF2|=|F1F2|,且F2到直线PF1的距离等于实轴长,则渐近线方程为?3
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 00:50:16
![1.等差数列an的S15=m,对于n∈N+,都有an>a(n+1),且a2,a8是x^2-12x+m=0的两根,则an的公差为?2.若双曲线x^2/a^2-y^2/b^2=1(a,b>0)右支上存在点P,满足|PF2|=|F1F2|,且F2到直线PF1的距离等于实轴长,则渐近线方程为?3](/uploads/image/z/13785970-58-0.jpg?t=1.%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97an%E7%9A%84S15%3Dm%2C%E5%AF%B9%E4%BA%8En%E2%88%88N%2B%2C%E9%83%BD%E6%9C%89an%EF%BC%9Ea%28n%2B1%29%2C%E4%B8%94a2%2Ca8%E6%98%AFx%5E2-12x%2Bm%3D0%E7%9A%84%E4%B8%A4%E6%A0%B9%2C%E5%88%99an%E7%9A%84%E5%85%AC%E5%B7%AE%E4%B8%BA%3F2.%E8%8B%A5%E5%8F%8C%E6%9B%B2%E7%BA%BFx%5E2%2Fa%5E2-y%5E2%2Fb%5E2%3D1%28a%2Cb%EF%BC%9E0%29%E5%8F%B3%E6%94%AF%E4%B8%8A%E5%AD%98%E5%9C%A8%E7%82%B9P%2C%E6%BB%A1%E8%B6%B3%7CPF2%7C%3D%7CF1F2%7C%2C%E4%B8%94F2%E5%88%B0%E7%9B%B4%E7%BA%BFPF1%E7%9A%84%E8%B7%9D%E7%A6%BB%E7%AD%89%E4%BA%8E%E5%AE%9E%E8%BD%B4%E9%95%BF%2C%E5%88%99%E6%B8%90%E8%BF%91%E7%BA%BF%E6%96%B9%E7%A8%8B%E4%B8%BA%3F3)
xUOXW"Tٵq6(y8VKCТJ)aU(-RP)A
g;g?~j{H̼f<ՄUG.5I}䶪Qgø)ɝǧr
J*ʶ$H&ga|UTFqm-ScOF m@ oj6Ҿ{|A
p"
DCH-cO]p'Cs*C+* Ʈt U ^N `NWӃ93̵ݍ)FGW}X|NZF++2Lve