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#1 2008-02-27 03:23:43

tony123
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acute angle

find acute angle x such that

Last edited by tony123 (2008-02-27 03:25:20)

 

#2 2008-02-28 07:13:53

JaneFairfax
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Re: acute angle



Last edited by JaneFairfax (2008-02-28 07:21:44)


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#3 2008-02-28 07:27:05

JaneFairfax
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Re: acute angle

Well, I didnt find the solution the following way but now that Ive found the solution, it finally hit me that I could have done it the following way instead of the messy method I used.

The roots of the complex equation

are



The sum of the roots is equal to 0. QED.


Q: Who wrote the novels Mrs Dalloway and To the Lighthouse?

A: Click here for answer.
 

#4 2008-02-28 07:50:47

tony123
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Re: acute angle

yes jane the only solution  x=2pi/7

x  acute

but you can get the solution by multiplying by 2sinx/2

thank you

 

#5 2011-07-29 15:21:58

gAr
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Re: acute angle

Hi tony123,

The way you wanted:


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