Find the equation of the line for which
p = 2 and ∝ = 3000
Given: p = 2 and ∝ = 3000
Here p is the perpendicular that makes an angle ∝ with positive direction of x-axis , hence the equation of the straight line is given by:
Formula used:
X cos ∝ + y sin ∝ =p
X cos 3000 + y sin 3000 =2
i.e; cos 3000 = cos ((8360) +120) = cos((8
2
)+120)= cos 120 =cos(180-60)=cos60
similarly, sin 3000 = sin ((8360) +120) = sin((8
2
)+120)= sin 120
= sin(180-60) = -sin 60
hence, x cos 60 + y (–sin 60) =2
x (1/2)- y
(
/2)=2
Hence The required equation of the line is x - y = 4