If `""^(12)C_(0)""^(12)C_(1).....""^(12)C_(12)` are the binomial coefficients of the expansion `(1+x)^(12),"them" ""^(12)C_(0)-""^(12)C_(1)+""^(12C_(2-""^(12)C_(3)+......""^(12)C_(12=` ____________