Use the binomial formula to find the coefficient of the term in the expansion of .这是二项式定理,

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Use the binomial formula to find the coefficient of the term in the expansion of .这是二项式定理,

Use the binomial formula to find the coefficient of the term in the expansion of .这是二项式定理,
Use the binomial formula to find the coefficient of the term in the expansion of .
这是二项式定理,

Use the binomial formula to find the coefficient of the term in the expansion of .这是二项式定理,
使用二项式公式中找到扩张的长期系数.

利用二项式系数公式,发现这个词的扩张。