Question

The normal at the point (1, 1) on the curve 2y + x² = 3 is
(A) x + y = 0 (B) x − y = 0
(C) x + y + 1 = 0 (D) x − y = 1

Answer 1

The equation of the given curve is 2y + x² = 3.
Differentiating with respect to x, we have:

The slope of the normal to the given curve at point (1, 1) is  

Hence, the equation of the normal to the given curve at (1, 1) is given as:

The correct answer is B.