Another prime year sum!

Probability Level 4

(20170)(20161)+(20152)(20143)++(10091008)=?\displaystyle \binom{2017}{0} - \binom{2016}{1} + \binom{2015}{2} - \binom{2014}{3} + \cdots + \binom{1009}{1008} = \, ?

×

Problem Loading...

Note Loading...

Set Loading...