CBSE Class 11-science Answered
if three points (h,0), (a,b) and (0,k)lie on a line, show that a/h + b/k =1
Asked by toppin | 28 Sep, 2010, 05:34: PM
Expert Answer
lets call them A,B,C respectively.
since they lie on the same line, so
slope of AB=slope of BC=slope of AC
slope of AB=b-0/a-h..(i)
slope of BC=k-b/0-a..(ii)
slope of AC=k-0/0-h..(iii)
from (i) and (iii0 we get
b/a-h=k/-h
so
b(-h)=k(a-h)
i e.
-bh=ak-kh
i.e.
ak+bh=kh
dividing by kh both sides,
a/h +b/k =1
hence the answer.
Answered by | 28 Sep, 2010, 06:05: PM
Application Videos
-
Introduction to Locus of a point and its equation ...
Video contains the question based on finding equation of locus of a point -
Problems based on Equation of Locus of a Point ...
Video contains the question based on finding equation of locus of a poin...
-
Introduction to Translation of Axes and Problems based ...
Video contains the question based on translation of axes -
Problem based on Translation of Axes ...
Video contains the question based on translation of axes -
Orthocenter of a Triangle and problem based on it ...
It contains the formula for the orthocentre of a triangle using coordinate ...
Concept Videos
-
Basics of 2 Dimensional Geometry
This video explains the basic concepts of 2D geometry. -
Slope of a Straight Line
This video explains how to find the slope of a line, condition for parallel... -
Various Forms of Equation of A Line
This video explains horizontal and vertical lines, various forms of equatio... -
Concepts related to distance between lines
This video explains concepts related to distance between lines. -
Normal and General Form of A Line ...
This video explains the Normal and General Forms of A Line.
CBSE 11-science - Maths
Asked by hakilashaikh13775 | 17 Jan, 2024, 11:22: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by raistar7042 | 02 Dec, 2023, 01:22: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by priteshpatidar2525 | 17 Oct, 2023, 05:43: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by shahyogini5 | 31 Mar, 2023, 04:48: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by hrai7387 | 16 Jan, 2023, 07:36: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by drvsam595 | 21 Jul, 2022, 05:32: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by rekhavarma359 | 30 Apr, 2022, 03:00: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by bhunias174 | 30 Mar, 2022, 09:45: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by lk7078333 | 04 Sep, 2021, 12:43: PM
ANSWERED BY EXPERT
