5a^n-2a^n-8a^n+1+6a^n-a^n+1 n是正的整数
问题描述:
5a^n-2a^n-8a^n+1+6a^n-a^n+1 n是正的整数
答
5a^n-2a^n-8a^n+1+6a^n-a^n+1
=(5-2-8+6-1)*a^n+1
=0*a^n+1
=1
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