这种两个被开方数差相等的比大小类型,只要取倒数就可以了
1/(√2002-√2001)
=(√2002+√2001)/[(√2002-√2001)(√2002+√2001)
=√2002+√2001
1/(√2003-√2002)
=(√2003+√2002)/[(√2003-√2002)(√2003+√2002)]
=√2003+√2002
因为两个数都是正数,正数小大,它的倒数就越大
√2003+√2002>√2002+√2001
所以原来两数:√2002-√2001>√2003-√2002