已知,a=√(2003*2006),b=√(2004*2005),试比较a与b的大小,要有过程
急!
人气:126 ℃ 时间:2019-11-09 06:34:01
解答
∵a^2=(2000+3)×(2000+6)
=2000^2+9×2000+18
b^2=(2000+4)×(2000+5)
=2000^2+9×2000+20
∴a^2<b^2
∴a<b
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