noun🔗Share余接In a right triangle, the reciprocal of the tangent of an angle. Symbols: cot, ctg or ctn"In a right triangle, if the tangent of angle A is 2, then the cotangent of angle A is 0.5. "直角三角形において、角度Aの正接が2の場合、角度Aの余接は0.5です。mathtechnicalChat with AIVocabulary GamePractice Reading