Toán Lớp 8: So sánh :
A = (2006)/(2007) + (2007)/(2008) + (2008)/(2009) + (2009)/(2006)
B = 4
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Toán Lớp 8: So sánh :
A = (2006)/(2007) + (2007)/(2008) + (2008)/(2009) + (2009)/(2006)
B = 4
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