1/2x4+1/4x6+1/6x8+...+1/198x200 求解题过程及答案.1/(2x4)+1/(4x6)+1/(6x8)+...+1/(198x200) 求解题过程及答案
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1/2x4+1/4x6+1/6x8+...+1/198x200求解题过程及答案.1/(2x4)+1/(4x6)+1/(6x8)+...+1/(198x200)求解题过程及答案1/2x4+1/4x6+1
1/2x4+1/4x6+1/6x8+...+1/198x200 求解题过程及答案.1/(2x4)+1/(4x6)+1/(6x8)+...+1/(198x200) 求解题过程及答案
1/2x4+1/4x6+1/6x8+...+1/198x200 求解题过程及答案.
1/(2x4)+1/(4x6)+1/(6x8)+...+1/(198x200) 求解题过程及答案
1/2x4+1/4x6+1/6x8+...+1/198x200 求解题过程及答案.1/(2x4)+1/(4x6)+1/(6x8)+...+1/(198x200) 求解题过程及答案
1/(2x4)+1/(4x6)+1/(6x8)+...+1/(198x200)
=1/2*(1/2-1/4+1/4-1/6+.+1/198-1/200)
=1/2*(99/200)
=99/400