[線代] 證明2^n 為獨立基底
要證明為線性獨立
必須證明若
a0+a1*2+a2*2^2+.....+ak*2^k=0
則a0=a1=a2=...=ak=0
要如何寫出比較嚴謹的證明呢??
還是說這個很直觀呢??
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