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📐 Mathematics  ·  Differential Equations  ·  JEE

For exponential growth model: dP/dt = kP (k > 0), the solution is:

Answer: P = P₀ e kt.

  • A P = P₀ + kt
  • B P = P₀ e<sup>kt</sup>
  • C P = kt
  • D P = P₀/k

Correct answer: B. P = P₀ e<sup>kt</sup>

Explanation: Separate: dP/P = k dt. Integrate: ln P = kt + C. P = P₀ e<sup>kt</sup>. Classic exponential growth.

Family of Solution Curves: y = Ax²Each value of the constant A gives ONE particular curve from the family

The general solution y=Ax² represents an entire FAMILY of curves, one for each value of the arbitrary constant A; a particular solution (fixed by an initial condition) selects exactly one curve from this family.

Concept context

Equations involving derivatives and their solutions

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