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📅  最后修改于: 2022-03-11 14:55:58.343000             🧑  作者: Mango
∫sin(x)dx = -cos(x) + C ∫cos(x)dx = sin(x) + C ∫-sin(x)dx = cos(x) + C ∫-cos(x)dx = -sin(x) + C