|ab-2|+(b-1)2次方=0
都是非负数
ab=2,b=1
a = 2/b = 2
ab分之1+(a+1)(b+1)分之1+(a+2)(b+2)分之1+……(a+2010)(b+2010)分之1
= 1/(2*1) + 1/(3*2) + 1/(4*3) +.+1/(2012*2011)
= 1-1/2 + 1/2-1/3+1/3-1/4+.1/2011-1/2012
= 1-1/2012
= (2012-1)/2012
= 2011/2012
|ab-2|+(b-1)2次方=0
都是非负数
ab=2,b=1
a = 2/b = 2
ab分之1+(a+1)(b+1)分之1+(a+2)(b+2)分之1+……(a+2010)(b+2010)分之1
= 1/(2*1) + 1/(3*2) + 1/(4*3) +.+1/(2012*2011)
= 1-1/2 + 1/2-1/3+1/3-1/4+.1/2011-1/2012
= 1-1/2012
= (2012-1)/2012
= 2011/2012