如图,已知三角形ABC中,角C=90度,角B=45度,AC=1,那么BC=___,AB=___,tan45度=___=___,cot45度=___=___,sin45度=___=___,cos45度___=___.
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![如图,已知三角形ABC中,角C=90度,角B=45度,AC=1,那么BC=___,AB=___,tan45度=___=___,cot45度=___=___,sin45度=___=___,cos45度___=___.](/uploads/image/z/1024918-70-8.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E8%A7%92C%3D90%E5%BA%A6%2C%E8%A7%92B%3D45%E5%BA%A6%2CAC%3D1%2C%E9%82%A3%E4%B9%88BC%3D___%2CAB%3D___%2Ctan45%E5%BA%A6%3D___%3D___%2Ccot45%E5%BA%A6%3D___%3D___%2Csin45%E5%BA%A6%3D___%3D___%2Ccos45%E5%BA%A6___%3D___.)
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