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找规律填数15.6256.25()()0.40.16怎么填
找规律填数15.6256.25()()0.40.16怎么填
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2020-09-25 22:24
找规律填数15.6256.25()()0.40.16怎么填
找规律填数15.6256.25()()0.40.16怎么填
15.6256.25(2.5)(1)0.40.16
an=15.624*0.4^(n-1),n>=2