[理工] [線代]Wronskian
f1(x)=e^x f2(x)=xe^2x f3(x)=x^2e^x in C^2(-∞,∞)
請問C^2(-∞,∞) <-- 是不是都不用管他? 我看很多題Wrongskain
算的時候都沒用到這條件?
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