Dear Colleagues,

Could you please help me in solving the following problem:

What is the value of $\displaystyle \binom {20}{0} +\binom {20}{2} +\binom {20}{4} +... \binom {20}{20}$ ?

Best Regards.

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- May 5th 2011, 12:23 PMraedCombinatorics
Dear Colleagues,

Could you please help me in solving the following problem:

What is the value of $\displaystyle \binom {20}{0} +\binom {20}{2} +\binom {20}{4} +... \binom {20}{20}$ ?

Best Regards. - May 5th 2011, 12:28 PMTheEmptySet
- May 5th 2011, 12:32 PMPlato
- May 5th 2011, 12:39 PMraed
Thank you very much for your reply. In fact I tried that but what about terms $\displaystyle \binom {20}{1}, \binom {20}{3},...,\binom {20}{19}$ ?

Best Regards. - May 5th 2011, 12:43 PMPlato