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Problem
Problem
The equation of normal at any point
θ
\theta
θ
to the curve
x
=
a
cos
θ
+
a
θ
sin
θ
,
y
=
a
sin
θ
−
a
θ
cos
θ
x = a \cos \theta + a \theta \sin \theta, y = a \sin \theta - a \theta \cos \theta
x
=
a
cos
θ
+
a
θ
sin
θ
,
y
=
a
sin
θ
−
a
θ
cos
θ
is always at a distance of a. 2a unit from origin b. 3 unit from origin c.
1
2
\frac{1}{2}
2
1
unit from origin d. None of these
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