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[考古] 中興100應數

[ trans_math ]8 留言, 推噓總分: +1

作者: ivylan - 發表於 2012/07/06 22:35(12年前)

1^F推suhorng:2. = ▽arctan(y/x)61.217.34.242 07/06 22:50

2^F→suhorng:(1,1)~(2*3^{1/2},2)的直線在arctan(y/x)61.217.34.242 07/06 22:51

3^F→suhorng:唔在integrand是conservative的地方61.217.34.242 07/06 22:51

4^F→suhorng:所以把 arctan(y/x)代上下界相減就好61.217.34.242 07/06 22:51

6^F→suhorng:嗯61.217.34.242 07/06 23:24

8^F→suhorng:嗯.... -arctan(y/x) Orz118.166.45.240 07/07 09:09

[考古] 成大100第一題(B)小題

[ trans_math ]5 留言, 推噓總分: +1

作者: x5876277 - 發表於 2012/07/04 18:31(12年前)

2^F推suhorng:微積分基本定理與鏈鎖律...61.217.34.242 07/04 18:44

Re: [考古] 台大93年微積分B第9題

[ trans_math ]4 留言, 推噓總分: +3

作者: make990 - 發表於 2012/07/01 23:47(12年前)

1^F推suhorng:請用 u = sin(t) 變數變換61.217.34.169 07/02 00:06

[考古] 成大100

[ trans_math ]50 留言, 推噓總分: 0

作者: Highhuman - 發表於 2012/07/01 21:51(12年前)

7^F→suhorng:極小極大值本來就是local的相對間沒關連61.217.34.169 07/01 22:08

8^F→suhorng:抱歉推錯文...61.217.34.169 07/01 22:09

[積分] 求面積

[ trans_math ]2 留言, 推噓總分: +1

作者: Highhuman - 發表於 2012/06/30 12:23(12年前)

1^F推suhorng:y=x和y=2圍成? 是 y=2x 圍成? 嗎59.115.145.111 06/30 12:32

[考古] 成大100第4題B

[ trans_math ]5 留言, 推噓總分: +1

作者: underspin - 發表於 2012/06/28 23:59(12年前)

1^F推suhorng:你算錯了是積分 x^3/(1 + x^4)59.115.145.111 06/29 00:05

2^F→suhorng:另, 直接分部積分積出 ∫arctan(t)dt59.115.145.111 06/29 00:06

3^F→suhorng:然後原式代換 t = x^259.115.145.111 06/29 00:06

[積分] 1/(1-tan^2(x) )

[ trans_math ]5 留言, 推噓總分: +3

作者: LucidowerK - 發表於 2012/06/26 22:01(12年前)

5^F→suhorng:原式減 1/2 變 1/2 sec^2(x)/(1-tan^2(x))61.217.28.157 06/27 10:22

Re: [積分] 積分

[ trans_math ]4 留言, 推噓總分: 0

作者: blak - 發表於 2012/06/25 15:18(12年前)

1^F→suhorng:-1/2ln1/3=(ln3)/259.115.145.57 06/25 15:22

Re: [方法] 100年成大第6題

[ trans_math ]7 留言, 推噓總分: +3

作者: suhorng - 發表於 2012/06/24 17:59(12年前)

5^F→suhorng:dx dy = dA = r dr dθ59.115.146.209 06/24 18:45

6^F→suhorng:recall that dxdy=|∂(x,y)/∂(u,v)|dudv59.115.146.209 06/24 18:46

Re: [微分] 中興應數100學年第一題

[ trans_math ]2 留言, 推噓總分: +1

作者: a016258 - 發表於 2012/06/24 15:48(12年前)

1^F推suhorng:+1 我也覺得答案跟 x 有關59.115.146.209 06/24 17:47

2^F→suhorng:是說好像少打個 dx/dt59.115.146.209 06/24 17:48

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