Recent content by GeorgeDirac

Yes, that is my problem, I am very stupid, I don't know why I thought that AX meant A*X.

My problem is from Israel Gelfand's Trigonometry textbook. Page 9. Exercise 7: Two points, A and B, are given in the plane. Describe the set of points X such that AX^2+BX^2=AB^2. The attempt at a solution Since problem asked to describe set of points X such that AX^2+BX^2=AB^2, I tried to...