The landlord is a wise man; In fact, your team understands these two topics; Just deliberately testing others;

The first question: it can be said that it is old-fashioned and nothing new. I think this problem has been in the conic section for at least five years, and it is not a new topic.

Only the original formula:1| om | 2+1| on | 2 is changed to: a 2/| on | 2+b 2/| om | 2.

(But a b is still a constant after all)

Thinking: set point A and point B, with the help of the vertical relationship of P; And the equation of conic curve and circle is transformed, and the straight line AB comes out at once; M and n will follow, and the rest is needless to say.

The second question: it is still an old question about conic curves;

Thought: the distance from a point to a straight line is equal to the radius; The intersection equation of straight line and hyperbola is simultaneous; Analyze the value of discriminant; The range of available k (-1; 1); (x 1-x2) 2 can be used to find x1-x2; With the help of Vieta theorem; When k = 0; The minimum available value is 2√2.

Answer over! I won't write the process. Anyway, you all know.

I hope it helps! ! !

Besides, I said I was just a personal hobby, and I was not interested in joining. I wish your team good results and help more people in need!