A point moves so that the sum of its distances from 2 fixed points is constant . Prove
that the locus of the point is an ellipse x?/a?+y?/b?=1

Dear student, 
Your question is not clear and appears to be incomplete please recheck your question and post it again so that our experts can provide you some meaningful help 
Looking forward to hear from you soon 
Regards 

  • 1
What are you looking for?