是非題: a) Every vector space that is spanned by a finite set has a basis True b) Every subspace of a finite-dimensional space is finite-dimensional False c) The only entries of an elementary matrix are zeros and ones True d) The sum of two n*n elementary matrices is an elementray matrix. False e) Every finite-dimensional inner product space posseses an orthornormal basis. False 以上是非題答案小弟都不太確定 所以請大大們幫小弟檢查一下是否有寫錯 麻煩各位大大了 感謝 --

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