1.

If a=31/223+1 and f(n)=n∑r=1(−1)r−1 nCr−1⋅an−r for all n≥3, then the value of f(2007)+f(2008) is

Answer»

If a=31/223+1 and f(n)=nr=1(1)r1 nCr1anr for all n3, then the value of f(2007)+f(2008) is



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