Question 613190
3000C15 + 3000C14 + 3000C13 + ... + 3000C4 + 3000C3 + 3000C2


1.06E40 (approx)


more than 99% is from the 1st term



this was calculated with a TI-30XA ... probably a $10 calculator ... if they still make them
___ it has the nCr and nPr functions built in