The curve is .
Find the point that lies on the curve.
\Consider the point be and it is closest to the origin
.
Hence the point is .
The distanc between the points and
is
The diatance is closest to when its first derivative becomes zero.
Apply derivative on each side with respect to .
.
Equate to zero.
Substitute in
.
Therefore the point lies on the curve which is closest to is
.
The point lies on the curve which is closest to is
.