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viewimage.php?id=20bcc42e&no=24b0d769e1d32ca73dec85fa11d02831f032f3b7b65aa671697d5dc3272f7a0f5bdf85e5fb44ff49b64f228672d82759036fce3de7257051a9f7efe3f4e8bc85d1f536d78a3dfdcd3db26960e62101cc336e

여기 문제에서 the projection on the y-axis along the x-axis가 대체 무슨 뜻임??
y축으로 투영 시킨다는거임?