(1+1/2)(1-1/2)(1+1/3)(1-1/3).(1+1/2013)(1-1/2013)等于多少,用求过程我就想看看我对不对 (用连锁约分)
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(1+1/2)(1-1/2)(1+1/3)(1-1/3).(1+1/2013)(1-1/2013)等于多少,用求过程我就想看看我对不对 (用连锁约分)
(1+1/2)(1-1/2)(1+1/3)(1-1/3).(1+1/2013)(1-1/2013)等于多少,用求过程我就想看看我
对不对 (用连锁约分)
(1+1/2)(1-1/2)(1+1/3)(1-1/3).(1+1/2013)(1-1/2013)等于多少,用求过程我就想看看我对不对 (用连锁约分)
(1+1/2)(1-1/2)(1+1/3)(1-1/3)x...x(1+1/2013)(1-1/2013)
=(1-1/2)(1+1/2)(1-1/3)(1+1/3)x...x(1-1/2013)(1+1/2013)
=1/2x3/2x2/3x4/3x……x2012/2013x2014/2013
=1/2x2014/2013
=1007/2013
200*(1-1/2)*(1-1/3)*(1-1/4)*.*(1-1/100)
(1/2+1/3+...+1/2004)(1+1/2+1/3+...+1/2003)-(1+1/2+1/3+...+1/2004)(1/2+1/3+...+1/2003)
(1-2/1)*(1-3/1)*(1-4/1)*.*(1-2007/1)*(1-2008/1)
(1/2014-1)(1/2013-1)(1-2012-1)...(1/3-1)(1/2-1)
(1-1/2^2)(1-1/3^2)K(1-1/10^2)
(1-1/2^2)(1-1/3^2)K(1-1/10^2)
计算:(-1)-[1-(1-1/2*1/3)]*6
计算!(-1)-[1-(1-1/2*1/3)]*6
2000*(1-1/2*)*(1-1/3)*...*(1-1999)*(1-1/2000)
(1/2+1/3+...+1/2007)*(1+1/2+1/3+...+1/2006)-(1+1/2+1/3+...+/2007)*(1/2+1/3+...+1/2006)
计算:(1/2+1/3+...+1/2011)*(1+1/2+1/3+...+1/2010)-(1+1/2+1/3+...+1/2011)*(1/2+1/3+...+1/2010)
计算(1-1/2-1/3-...-1/2010)*(1/2+1/3+..+1/2011)-(1-1/2-1/3-...-1/2011)*(1/2+1/3+...+1/2010)
2000*(1-1/2)*(1-1/3)*.*(1-1/1999)*(1-1/2000)
(1-1/2004)(1-2003)(1-2002)…(1-1/3)(1-1/2)
(1-1/2)(1-1/3)(1-1/4).(1-1/100)
巧算(奥数题)问:(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×...(1+1/99)×(1-1/99)
计算 ( 1+1/2)*(1-1/3)*(1+1/4)*(1-1/5)*.*(1+1/1000)*(1-1/1001)
(1+2/1)(1+4/1)(1+6/1).(1+10/)(1-3/1)(1—5/1).(1-9/1)