線代分類題庫 離散(97試題解析)

學生有兩個問題

1.線代分類題庫本(P120 3-30)
題目:If an n-element subset of a finite-dimensional vector space V is linearly independent thenthe dimension of V is greater than n.

ans:TRUE

疑問:應該 dim(V)>=n,當初以為是印錯,但 最近在作題庫班上課講義後面題庫,再 度遇到此問題,答案一樣是TRUE學生是 否有哪裡想法錯誤,或者英文判斷錯誤 ,請指正

2.離散97試題解析(P23 8.)

問題:which of the following rule describes a function with the given domain and codomain?

ans: h:R->R where h(x)=√x (TRUE)

疑問: x=-1,√-1 ?

以上兩個問題,請老師或同學們指教,謝謝各位!