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" If "^(n)C(0)-^(n)C(1)+^(n)C(2)-^(n)C(3...

" If "^(n)C_(0)-^(n)C_(1)+^(n)C_(2)-^(n)C_(3)+.......+(-1)^(n)C_(r)=28," Then "n" is equal to "

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If "^(n)C_(0)-^(n)C_(1)+^(n)C_(2)-^(n)C_(3)+...+(-1)^(r )*^(n)C_(r )=28 , then n is equal to ……

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If "^(n)C_(0)-^(n)C_(1)+^(n)C_(2)-^(n)C_(3)+...+(-1)^(r )*^(n)C_(r )=28 , then n is equal to ……

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