利用计算机探索规律:任选1、2、3、4、5、6、7、8、9中的一个数,将这个数乘3,再将结果乘37037,你能发现什么规律,试解释这一规律.
解:∵37037×3=111111,
设1,2,3,…,9中的任一数字为m,
∴m×37037×3= (即1
已知函数fx=sinπ2x-1,x<0logaxa>0,a≠0,x>0的图象上关于y轴对称的点至少有3对,则实数a的取值范围是( )
单词归类。
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