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a2 + b2 + c2 - 2a - 6b - 8c + 26 = 0find a, b, c
a2 + b2 + c2 – 2a – 6b – 8c + 26 = 0a2 + b2 + c2 – 2a – 6b – 8c + 26 = 0a2 – 2a + b2 – 6b + c2 – 8c + 26 = 0(a – 1)2 + (b – 3)2 + (c – 4)2 + 26 = 0(a – 1)2 = 0(a – 1) =0a = 1like that b = 3, c = 4 note:(a – 1)2 = a2 + 1 + 2athis 1 is included in that 26like that only for b and c
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