Question

If the points (a,0) ,(0,b) and (1,1) are collinear then 1/a +1/b=1 . Is it true??

Answer 1

Use area of triangle form by these three points is equal to zero area of t triangle=1/2 {a (b-1)+0+1 (0-b)} 0=ab-a-b a+b = ...