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先算(2#5)=2^2(7-5)=8; 再算(8#3)=8^2(7-3)

kiticli (lalala)
(#11101193@0)
2017-10-9 -04:00
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Back To Topic: 请教各位大牛一数学题。 If a # b = a2(7 − b), what is the value of (2 # 5) # 3? 请教具体步骤。其中,a2 是 a 的平方,没法打出来, 多谢!

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