1997^n×2^n+1×(1⼀3994)^n+1怎么简便运算?

2024-12-05 06:54:50
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回答(1):

1997^n×2^n+1×(1/3994)^n+1=1997^n×2^n×2×(1/3994)^n+1=3994^n×2×(1/3994)^n+1=2/3994