a)Giải phuong trình x-3/2011+x-2/2012=x-2012/2+x-2011/3 b) khi nghiên cứu về số nguyên người ta nhận thấy năm số 10,11,12,13,14 thỏa mãn:10²+11²+12²=13²+14². Hỏi ngoài năm số trên còn có những bộ số nguyên nào cũng có tính chất như vậy không?

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