for all positive integers,*m*=3m,when m is odd, and *m*=(1/2)m,when m is even.Which of the following is equivalent to (*9*)乘以(*6*)
做了几遍都是81,但是prep 上的答案是 27
请XDJM帮着看看,谢谢啦
请lz看仔细,如果答案是*27*,则 *27* = 3x27= 81, which is equal to *9* x *6* = 81. therefore, the answer is 27.
哈哈
谢谢啊,我明白了!
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