1. It is given that (1+kx^3)^n = 1- 8x^3 + 24x^6 +...,Find k and n
,where n is positive integer.
2. If the constant term and the coefficient os x in the expansion of
1 +ax)^4 ( b - x)^5 are 32 and 48 respectively , find a and b.
F.4 ..m2 (Binomial Theorem)
2010-09-25 11:16 pm
回答 (2)
2010-09-25 11:33 pm
2010-09-26 6:35 am
第2條做錯了 a是1
收錄日期: 2021-04-22 00:52:07
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