福利 20/11~25/11的每周一篇【龙妖儿念凉吧】_百度贴吧

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福利 20/11~25/11的每周一篇

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1楼2012-11-20 21:05回复

1 Which of the following about complex number are TRUE ?
(I) F. Causs was the first mathematician to use a + bi to represent a complex number
(II) The complex coordinate plan is today known as the Argand plane.
(III) Complex number is amazing because it has wide applications in mathematics world.
ans II and III only

2楼2012-11-20 21:06

2 Complex numbers are widely used in
(I) infinite series (II) electric circuits (III) polynomial equations
ans All of them

3楼2012-11-20 21:06

3 Which of the equations will have a complex solution?

ans x^2 - x + 6 = 0

4楼2012-11-20 21:07

4 Who was the first mathematician used the symbol i to represent square root of (-1)?
ans Euler

5楼2012-11-20 21:08

5 Who was the first mathematician to represent a complex number on a plane ?

ans Wallis

6楼2012-11-20 21:08

end

7楼2012-11-20 21:09

8楼2012-12-02 12:44

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