[微積] 4題
1. f(x)=x^1/3(x-3)2/3 -1<=x<=4 求f(x)極值
答案是最大值3√4 最小值-2(3√2)
我算值都算不出這2個答案來@@
2.∫x+3/x^4+9x^2 dx
3.∫sin平方乘cos三次方 dx
∞
4.∫ ㏑x/x^2 dx
e
想額外問個蠢問題.. ln0和ln∞
還有e^∞ e^-∞
值各是多少呢?
我有時都會錯亂..
先說聲感謝!!
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※ 編輯: dreamenjoy 來自: 114.26.172.230 (03/18 02:07)
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