关于绝对值和乘方的题3道1、2-2^2-2^3…………-2^9+2^10要说明原理.怎么约分的..要把我讲明白了2、|4/7-2/5|-|3/5-7/9|+|2/9-3/7|3、已知1/2+1/5+1/8+1/11+1/20+1/41+1/110+1/1640=1则-1/2-1/8+1/11-1/20-1/41+1/110+1/1640要
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![关于绝对值和乘方的题3道1、2-2^2-2^3…………-2^9+2^10要说明原理.怎么约分的..要把我讲明白了2、|4/7-2/5|-|3/5-7/9|+|2/9-3/7|3、已知1/2+1/5+1/8+1/11+1/20+1/41+1/110+1/1640=1则-1/2-1/8+1/11-1/20-1/41+1/110+1/1640要](/uploads/image/z/11944086-6-6.jpg?t=%E5%85%B3%E4%BA%8E%E7%BB%9D%E5%AF%B9%E5%80%BC%E5%92%8C%E4%B9%98%E6%96%B9%E7%9A%84%E9%A2%983%E9%81%931%E3%80%812-2%5E2-2%5E3%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6-2%5E9%2B2%5E10%E8%A6%81%E8%AF%B4%E6%98%8E%E5%8E%9F%E7%90%86.%E6%80%8E%E4%B9%88%E7%BA%A6%E5%88%86%E7%9A%84..%E8%A6%81%E6%8A%8A%E6%88%91%E8%AE%B2%E6%98%8E%E7%99%BD%E4%BA%862%E3%80%81%7C4%2F7-2%2F5%7C-%7C3%2F5-7%2F9%7C%2B%7C2%2F9-3%2F7%7C3%E3%80%81%E5%B7%B2%E7%9F%A51%2F2%2B1%2F5%2B1%2F8%2B1%2F11%2B1%2F20%2B1%2F41%2B1%2F110%2B1%2F1640%3D1%E5%88%99-1%2F2-1%2F8%2B1%2F11-1%2F20-1%2F41%2B1%2F110%2B1%2F1640%E8%A6%81)
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