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November 08, 2025, 04:46:24 am
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Author Topic: Complex Trigonometric - Complex Numbers  (Read 1797 times)  Share 

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squance

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Complex Trigonometric - Complex Numbers
« on: May 24, 2008, 04:23:54 pm »
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I can't seem to get the answer to this one.....

Express the following in cartesian form a + ib with a, b real



The answer is 1/2(1 -i tan(a/2))

I first got 1 + sec(a) + cosec(a) but splitting everything up but then I didn't know where to go next.

Help would be muchly appreciated
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bturville

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Re: Complex Trigonometric - Complex Numbers
« Reply #1 on: May 27, 2008, 11:20:56 pm »
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Hmm. I tried a whole bunch of methods and couldnt get anywhere.

I'll take another stab tomorrow :)
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squance

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Re: Complex Trigonometric - Complex Numbers
« Reply #2 on: May 27, 2008, 11:39:23 pm »
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Heheh!! Thanks for replying but I got it all worked out at the end...

You can try working it out and i'll put up the solutions tommorow or someday if anyoen is interested :)
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bturville

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Re: Complex Trigonometric - Complex Numbers
« Reply #3 on: May 28, 2008, 07:22:44 pm »
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Yeah i got it. Didn't seem so hard once i worked out the method.
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