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[" 82.If "a,b,c" are different and "|[a,...

[" 82.If "a,b,c" are different and "|[a,a^(2),a^(3)-1],[b,b^(2),b^(3)-1],[c,c^(2),c^(3)-1]|=0" then "],[[" (1) "a+h+c=0," 2) "abc=1," 3) "a+b+c=1," (4) "ab+bc" ? "c" : "=0]]

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