(3a^n+1+6a^n+2-9a^n)/3a^n-1是计算题
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(3a^n+1+6a^n+2-9a^n)/3a^n-1是计算题
![(3a^n+1+6a^n+2-9a^n)/3a^n-1是计算题](/uploads/image/z/7466165-53-5.jpg?t=%283a%5En%2B1%2B6a%5En%2B2-9a%5En%29%2F3a%5En-1%E6%98%AF%E8%AE%A1%E7%AE%97%E9%A2%98)
(3a^n+1+6a^n+2-9a^n)/3a^n-1
=1/(3a^n)-1
=(1-3a^n)/(3a^n)
=1/(3a^n)-1
=(1-3a^n)/(3a^n)
(3a^n+1+6a^n+2-9a^n)/3a^n-1是计算题
计算:(3a^n+2+6a^n+1-9^n)÷3a^n-1
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