解:
2010×(1-2分之一)x(1一三分之一)x……x(1-2010之一)
=2010×(1-1/2)×(1-1/3)×(1-1/4)×……×(1-1/2009)×(1-1/2010)
=2010×(1/2)×(2/3)×(3/4)×……×(2008/2009)×(2009/2010)
=2010×[(1×2×3×……×2008×2009)/(2×3×4×……×2009×2010)]
=2010×(1/2010)
=1
2010×(1-1/2)×(1-1/3)×...×(1-1/2010)
=2010 × 1/2 × 2/3 × 3/4 ×...× 2009/2010
=2010 × 1/3 × 3/4 × ... × 2008/2009 × 2009/2010
=2010× 2008/2010
=2008