[벡터미적분 Ep.3] sin(x)를 펼친 길이는?

스칼라장의 선적분입니다.
회전을 다루기전 선적분에 대한 개념 먼저 확실하게 해야할 것 같아 회전보다 먼저 다루게 되었습니다.
응원해주시는 분들께 감사하다는 말을 전합니다.


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