InterviewSolution
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If a= .^(20)C_(0) + .^(20)C_(3) + .^(20)C_(6) + .^(20)C_(9) + "…..", b = .^(20)C_(1) + .^(20)C_(4) + .^(20)C_(7) + "……"' and c = .^(20)C_(2) + .^(20)C_(5) + .^(20)C_(8) + "…..", then Value of (a-b)^(2) + (b-c)^(2) + (c-a)^(2) is |
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Answer» SOLUTION :`(a-b)^(2) + (b-c)^(2) + (c-a)^(2)` `= 2(a+bomega+ comega^(2)) (a+bomega^(2) + comega)` `= 2` |
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