6. What is the su of all the coefficients in the expansion of ? (A) 256； (B) 512； (C)1024； (D) 2048.

問題詳情

6. What is the su of all the coefficients in the expansion of

?
(A) 256；
(B) 512；
(C)1024；
(D) 2048.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增

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