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1+2+3+4+5+67+8+9+10+11…… +How much is 1000?
You can continue to ask me if you will not
What is 2 + 4 + 6 + 8 + 10
2 + 4 + 6 + 8 + 10 equals 30
General term formula: 1 + 1 / 2,1-3 ^ 2 / 4,1 + 5 ^ 2 / 6,1-7 ^ 2 / 8
The nth term is 1 - (2n-1) ^ 2 / 2n × (- 1) ^ n
What is the general formula of 1 / 2,3 / 4,7 / 8,15 / 16?
I don't know how to count, but tell me clearly
(2^n-1)/2^n
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