1/(2/3)/(3/4)/(4/5)./(2008分之2009) /是除号
问题描述:
1/(2/3)/(3/4)/(4/5)./(2008分之2009) /是除号
1/(2/3)/(3/4)/(4/5)........../(2009分之2008) 打错
答
1/(2/3)/(3/4)/(4/5)./(2009分之2008)
=1/[(2/3)*(3/4)*(4/5)*...*(2008/2009)]
=1/(2/3*3/4*4/5*...*2008/2009)
=1/(2/2009)
=1*2009/2
=2009/2