Question

If points (a,0),(0,b)and(1,1) are coliner find the value of 1\a+1\b?

Answer 1

Answer:

Step-by-step explanation:

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=ab

divide both side by ab

a/ab+b/ab=ab/ab

1/b+1/a=1

hence

1/a+1/b=1