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[" 238."I(1+x)^(n)=C(0)+C(1)x+C(2)x^(2)+...

[" 238."I(1+x)^(n)=C_(0)+C_(1)x+C_(2)x^(2)+...+C_(n)x^(n)" then "],[" the value of "C_(0)C_(1)+C_(1)C_(2)+C_(2)C_(3)+...+C_(n-1)C_(n)" is "],[" equal to "],[[" (1) "2n_(n)," (2) "2n_(C_(n-1))],[" (3) "^(n)C_(n-1)+^(n)C_(n-2)," (4) "2n_(n-2)]]

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