推 hsboy1010:線性代數:剛學"簡單嘛高中都會!" 12/01 01:56
→ hsboy1010:兩個月後"FUCK台上那位老先生在說什麼?" 12/01 01:56
推 sckuo:為什麼數學是英文阿...一次讀兩科喔.. 12/01 23:09
推 killuaken:第2題 你可以把每個x的次方當作一個向量來看 12/02 00:05
1. Why "all vectors of the form (a,b,0)" is not subspace of R^3 ?
2. Why "all polynomials a0 + a1*x + a2*x^2 + a3*x^3 for which a0 ,
a1,a2,and a3 are integers" is not subspace of P3 ?
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