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NDA Mathematics Differential Equations 2026 NDA 2026 (Phase 1)

NDA Mathematics Question (2026) — Solution

Question

What is the solution of the differential equation ( dy dx )=p when y(0)=q ?

Options

  1. A. ( y-q x )=p
  2. B. ( y-p x )=q
  3. C. ^ -1 ( y-q x )=p
  4. D. ^ -1 ( y-p x )=q

Answer

A. ( y-q x )=p

Step-by-step solution

The given differential equation is ( dy dx )=p dy dx = ^ -1 (p) Integrating both sides with respect to x, we get: y = x ^ -1 (p) + C Given y(0) = q, substituting x = 0 and y = q: q = 0 + C C = q Substituting the value of C in the equation: y = x ^ -1 (p) + q y - q = x ^ -1 (p) y - q x = ^ -1 (p) ( y - q x ) = p Answer: ( y-q x )=p

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