x(1/2*4+1/4*6+1/6*8+……+1/2n*(2n+2))=2006/2008x的值是多少?

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x(1/2*4+1/4*6+1/6*8+……+1/2n*(2n+2))=2006/2008x的值是多少?x(1/2*4+1/4*6+1/6*8+……+1/2n*(2n+2))=2006/2008x的值

x(1/2*4+1/4*6+1/6*8+……+1/2n*(2n+2))=2006/2008x的值是多少?
x(1/2*4+1/4*6+1/6*8+……+1/2n*(2n+2))=2006/2008
x的值是多少?

x(1/2*4+1/4*6+1/6*8+……+1/2n*(2n+2))=2006/2008x的值是多少?
x/2(1/1*2+1/2*3+1/3*4+……+1/n*(n+1))=2006/2008
x/2(1-1/2+1/2-1/3+1/3-1/4+1/4……-1/n+1/n-1/(n+1))=2006/2008
x/2 * n/(n+1)=1003/1004
x=2*(1003/1004)*(n+1)/n

x[1/2(1/2-1/4)+1/2(1/4-1/6)+1/2(1/6-1/8)+...+1/2(1/2n-1/(2n+2)]=2006/2008
x[1/2(1/2-1/4+1/4-1/6+1/6-1/8+...+1/2n-1/(2n+2)]=2006/2008
x[1/2(1/2-1/(2n+2)]=2006/2008
x[1/2*n/(2n+2)]=2006/2008
x=1003(n+1)/251n

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