作业帮55x10.34+104.3x4.4+104.3x0.1(x代表乘的意思)
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55x10.34+104.3x4.4+104.3x0.1(x代表乘的意思)
55x10.34+104.3x4.4+104.3x0.1(x代表乘的意思)
55x10.34+104.3x4.4+104.3x0.1(x代表乘的意思)
55x10.34+104.3x4.4+104.3x0.1
=(55x10+55x0.34)+104.3x(4.4+0.1)
=(550+18.7)+104.3x4.5
=568.7+469.35
=1038.05
偶有的
55x10=550,34 加104=138 3x4=12 4加104=108 3x0.1=0.3
55x10.34+104.3x4.4+104.3x0.1(x代表乘的意思)
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计算1/1x4+1/4x7+1/7x10+***+1/2007x2010
1/1x4+1/4x7+1/7x10+……+1/2005x2008佼佼我
1/1X4+1/4X7+1/7X10+...+1/100X103=
1/1x4+1/4x7+1/7x10+……+1/97x100SOS!SOS!
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1/1X4+1/4X7+1/7X10+.+1/2002X2005=?有规律的
1/1x4+1/4x7+1/7x10+……+1/2005x2008
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1X4/1+4X7/1+7X10/1+…+2005X2008/1=?