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IGCSE/GCSE/O & A Level/IB/University Student Forum
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Needs help with complex numbers
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Topic: Needs help with complex numbers (Read 955 times)
Priya
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Needs help with complex numbers
«
on:
June 18, 2009, 03:46:48 am »
Can you explain how to do the last part...
At the same time, I would be really grateful if you could explain how do do maximum of z, least argument and maximum argument...
Thank you very much for all the help!
«
Last Edit: June 18, 2009, 04:02:22 am by Priya
»
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astarmathsandphysics
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Re: Needs help with complex numbers
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Reply #1 on:
June 18, 2009, 08:32:34 am »
Minimum of |z-(i+i)|=d-r where d is the distance of the centre of the circle from the origin and r is the radius=1
d=
so ans
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astarmathsandphysics
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Free the exam papers!
Re: Needs help with complex numbers
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Reply #2 on:
June 18, 2009, 08:46:26 am »
Maximum value of z=greatest distance from origin. There is usually some trickery involved. In this case it is distance of centre of circle from origin +radius of circle.
Greatest argument is biggest angle that the locus makes with the x axis when you go anticlockwise from the positive x axis. In this case the maximum argument is pi/2 and the minimum argument is 0
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IGCSE/GCSE/O & A Level/IB/University Student Forum
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Math
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Needs help with complex numbers