murat

Xinjiang university

自 2014 起处于活动状态

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提问

how do I find X ?
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8 years 前 | 0 个回答 | 0

0

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提问

why "symsum(sin(k*pi)*k,0,n)" not equal zero
why "symsum(sin(k*pi)*k,0,n)" not equal zero?

10 years 前 | 3 个回答 | 0

3

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