JEE Main · 2022 · 25 Jun 2022 · Shift 1 · Differential Equations

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Let be the solution of the differential equation , with . Then, the point for the curve is:
  1. (A)not a critical point
  2. (B)a point of local minima✓ Correct
  3. (C)a point of local maxima
  4. (D)a point of inflection

Answer: (B)

Solution

Rewrite the differential equation:

Dividing by :

This gives

Integrating:

Using :

So



At : (critical point)



At :

Therefore, is a point of local minima.

JEE Main · 2022 · 25 Jun 2022 · Shift 1 · Single correct option

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