if the points(a,0);(0,b)and(1,1)are collinear then1/a+1/b
Answers
Answered by
8
since the points are collinear,area of triangle formed by those points is equal to 0.
1/2|x1(y2-y3)+x2(y3-y1)+x3(y1-y2)| = 0
ab-a-b=0
a+b=ab
a/ab+b/ab=1
1/a+1/b=1
1/2|x1(y2-y3)+x2(y3-y1)+x3(y1-y2)| = 0
ab-a-b=0
a+b=ab
a/ab+b/ab=1
1/a+1/b=1
Answered by
0
Slope of the line of two points on the are given
Slope = y 2-y1/x2-x1
Answer is attached
Similar questions