Answer :

To Find:The equation of the line.


Given: p = 3 and = 450


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 450 + y sin 450 =3


i.e; cos 450 = cos (360 +90) = cos 90 [ cos(360+ x) = cos x]


similarly, sin 450 = sin (360 +90) = sin 90 [ sin(360+ x) = sin x]


hence, x cos 90 + y sin 90 =3


x (0)+ y 1=3


Hence the required equation of the line is y=3.


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