Bagaimana soal terakhir dapat diselesaikan jika Anda meletakkan y=acos(theta)?. Actually, y=asin(theta) jadi bagaimana y bisa menjadi acos(theta)?####[['y', 'Mathematical_Related_Concept', 'NEG'], ['acos(theta', 'Mathematical_Related_Concept', 'NEG'], ['y=acos(theta)', 'Mathematical_Related_Concept', 'NEG'], ['y=asin(theta)', 'Mathematical_Related_Concept', 'NEG']]