(a) It is given that (1+ax)³(1-2x)^6 = 1+kx+term in x³ and other terms involving higher powers of x. Find the values of a and k.
(b) Evaluate the coefficient of x³ in the expansion.
F.4 M2 Binomial Theorem
2014-11-16 6:19 am
回答 (1)
2014-11-16 6:57 am
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