Suppose that we restrict our attention to relatively small deviations from the equilibrium state. In other words, suppose that the angle
is constrained to take fairly small values. We know, from trigonometry, that for
less than about
it is a good approximation to write
![begin{displaymath} sintheta simeq theta. end{displaymath}](https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Ffarside.ph.utexas.edu%2Fteaching%2F301%2Flectures%2Fimg1823.png)
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그냥 0에 가까울떄 쎄타값은 싸인값이랑 같다고 봐도 된다는말
그건이해가되는데..좀더 자세히 해석하고싶어서요
@걷자 집앞이야 그걸 설명한 말밖에 없는데유..ㅋㅋ