The length of the perpendicular segment from the origin to a line is 2 units and the inclination of this perpendicular is ∝ such that sin ∝ =
and ∝ is acute. Find the equation of the line.
To Find: The equation of the line .
Given : p=2 units and
=
.
Since sin ∝ =
= 

Using Pythagoras theorem :
adj =
=
= 2
units.
i.e; cos ∝ =
= 
Formula used:
equation of the line: x cos ∝ +y sin ∝ =p
x
(
) +y
(
) = 2
Hence ,2
x + y = 6 Or
x +y =6 is the required equation of the line.