化简:2009*(1-1/2-1/3-1/4-1/5-1/6-……1/2009)

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化简:2009*(1-1/2-1/3-1/4-1/5-1/6-……1/2009)
化简:2009*(1-1/2-1/3-1/4-1/5-1/6-……1/2009)

化简:2009*(1-1/2-1/3-1/4-1/5-1/6-……1/2009)
1+(1/2)+……+(1/n)=ln(n)+0.5822
1-1/2-1/3-1/4-1/5-1/6-……1/2009
=2-1-1/2-1/3-1/4-1/5-1/6-……1/2009
=2-ln(2009)-0.5772
=2-7.6054-0.5772
=-6.1826
2009*(1-1/2-1/3-1/4-1/5-1/6-……1/2009)
=-12420.8434

411

化简:2009*(1-1/2-1/3-1/4-1/5-1/6-……1/2009) 化简：|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009| 化简(1/3)^2008*(-3)^2009 1/3：1/2化简化简1/3:1/2 化简:1×2分之1+2×3分之1+3×4分之1+…+2008×2009分之1 化简1/ ×+1/3-× 化简：1/1×2+1/2×3+1/3×4+1/4×5+1/5×6+………1/2008×2009 2√1/3化简化简1/1+根号2-根号3 化简|3x+1|+|2x-1| 1+2+3+.+(n-1)化简 1/2009+2/2009+3/2009+.+2008/2009=? 1/(1*1+1)+1/(2*2+2)+1/(3*3+3)+……1/(2009*2009+2009) 答案是 -3(2x-y)-2(4x+1/2y)+2009化简 -3(2x-y)-2(4x+1/2y)+2009化简｜1/2-1｜+｜1/3-1/2｜+1/4-1/3｜+...｜1/2009-1/2008｜+｜1/2010-1/2009｜=? (2011/1-1)(2010/1-1)(2009/1-1)…(3/1-1)(2/1-1)