The displacement of a particle varies according to the relation $x = 3 \ sin\ 100t + 8\  cos^2\  50t$ . Which of the following is incorrect about this motion
  • AThe motion of the particle is $S.H.M.$
  • BThe amplitude of the $S.H.M.$ of the particle is $5\  units$
  • CThe amplitude of the resultant $S.H. M.$ is $\sqrt {73} \  units$
  • DThe maximum displacement of the particle from the origin is $9\  units$
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