附图(10金币)如图,直角三角形短边a,长边b,斜边c,bc夹角为角A,且a不等于b,a和b不能为整数倍.求:当a和b是什么关系时,有角度A的值为整数?(后附10金币以奖励我以没多少金币了,大家求证为主
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![附图(10金币)如图,直角三角形短边a,长边b,斜边c,bc夹角为角A,且a不等于b,a和b不能为整数倍.求:当a和b是什么关系时,有角度A的值为整数?(后附10金币以奖励我以没多少金币了,大家求证为主](/uploads/image/z/14775388-52-8.jpg?t=%E9%99%84%E5%9B%BE%EF%BC%8810%E9%87%91%E5%B8%81%EF%BC%89%E5%A6%82%E5%9B%BE%2C%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9F%AD%E8%BE%B9a%2C%E9%95%BF%E8%BE%B9b%2C%E6%96%9C%E8%BE%B9c%2Cbc%E5%A4%B9%E8%A7%92%E4%B8%BA%E8%A7%92A%2C%E4%B8%94a%E4%B8%8D%E7%AD%89%E4%BA%8Eb%2Ca%E5%92%8Cb%E4%B8%8D%E8%83%BD%E4%B8%BA%E6%95%B4%E6%95%B0%E5%80%8D.%E6%B1%82%EF%BC%9A%E5%BD%93a%E5%92%8Cb%E6%98%AF%E4%BB%80%E4%B9%88%E5%85%B3%E7%B3%BB%E6%97%B6%2C%E6%9C%89%E8%A7%92%E5%BA%A6A%E7%9A%84%E5%80%BC%E4%B8%BA%E6%95%B4%E6%95%B0%3F%EF%BC%88%E5%90%8E%E9%99%8410%E9%87%91%E5%B8%81%E4%BB%A5%E5%A5%96%E5%8A%B1%E6%88%91%E4%BB%A5%E6%B2%A1%E5%A4%9A%E5%B0%91%E9%87%91%E5%B8%81%E4%BA%86%2C%E5%A4%A7%E5%AE%B6%E6%B1%82%E8%AF%81%E4%B8%BA%E4%B8%BB)
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