The equation of the normal of at is
Explanation for the correct options:
Step 1: Finding the value of and
Given equation of curve is
On differentiating the above equation we get,
Thus,
We know that . Substituting the value of , we get
Step 2: Finding the equation of normal
So, the equation of normal at point is
Thus, the equation of the normal of at is
Hence, option (A) is the correct answer.