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TS EAMCET · Maths · Differential Equations

The differential equation of the simple harmonic motion given by \(x=A \cos (n t+\alpha)\) is

  1. A \(\frac{d^2 x}{d t^2}-n^2 x=0\)
  2. B \(\frac{d^2 x}{d t^2}+n^2 x=0\)
  3. C \(\frac{d x}{d t}-\frac{d^2 x}{d t^2}=0\)
  4. D \(\frac{d^2 x}{d t^2}-\frac{d x}{d t}+n x=0\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{d^2 x}{d t^2}+n^2 x=0\)

Step-by-step Solution

Detailed explanation

Given, \(x=A \cos (n t+\alpha)\) On differentiating \(x\) w.r.t. ' \(t\) ', we get…