计算I=∫（0,0)（a,b)ex（cosydx-sinydy)．

计算I=∫_(0,0)^(a,b)e^x(cosydx-sinydy)．

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发布时间：2020-07-14

更多“计算I=∫（0,0)（a,b)ex（cosydx-sinydy)．”相关的问题

第1题

若电场E=（Ex，Ey，0)，磁场为B=（0，0，B0)，求出含E一次方程的近似解。

若电场E=(Ex，Ey，0)，磁场为B=(0，0，B0)，求出含E一次方程的近似解。

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第2题

计算I=∫L[exsiny－b（x＋y)]dx＋（excosy－ax)dy，其中a，b为正的常数，L为从点A（2a，0)沿曲线到点O（0，0)的有向弧段．

计算I=∫_L[e^xsiny-b(x+y)]dx+(e^xcosy-ax)dy，其中a，b为正的常数，L为从点A(2a，0)沿曲线计算I=∫L[exsiny－b（x＋y)]dx＋（excosy－ax)dy，其中a，b为正的常数，L 到点O(0，0)的有向弧段．

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第3题

(1)写出H₂(g),CO(g),CH₃OH(I)燃烧反应的热化学方程式;(2)甲醉的合成反应为:CO(g)+2H≇

（1)写出H₂（g),CO（g),CH₃OH（I)燃烧反应的热化学方程式;（2)甲醉的合成反应为:CO（g)+2H≇

(1)写出H₂(g),CO(g),CH₃OH(I)燃烧反应的热化学方程式;

(2)甲醉的合成反应为:CO(g)+2H₂(g)→CH₃OH(l).

利用（1)写出H2（g),CO（g),CH3OH（I)燃烧反应的热化学方程式;（2)甲醉的合成反应为:C 计算该反应的.

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第4题

Tinep Co is planning to raise funds for an expansion of existing business activities and i

n preparation for this the company has decided to calculate its weighted average cost of capital. Tinep Co has the following capital structure:

Tinep Co is planning to raise funds for an expansi

The ordinary shares of Tinep Co have a nominal value of 50 cents per share and are currently trading on the stock market on an ex dividend basis at $5·85 per share. Tinep Co has an equity beta of 1·15.

The loan notes have a nominal value of $100 and are currently trading on the stock market on an ex interest basis at $103·50 per loan note. The interest on the loan notes is 6% per year before tax and they will be redeemed in six years’ time at a 6% premium to their nominal value.

The risk-free rate of return is 4% per year and the equity risk premium is 6% per year. Tinep Co pays corporation tax at an annual rate of 25% per year.

Required:

(a) Calculate the market value weighted average cost of capital and the book value weighted average cost of capital of Tinep Co, and comment briefly on any difference between the two values. (9 marks)

(b) Discuss the factors to be considered by Tinep Co in choosing to raise funds via a rights issue. (6 marks)

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第5题

隔爆型电气设备的标志符号由（)组成。

A.Ex

B.KB

C.I

D.d

E.MA

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第6题

防爆电气应在明显部位有永久性防爆标志，防爆标志为（)。