#Complex Numbers

36 messages · Page 1 of 1 (latest)

surreal oasis
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f

rich lintelBOT
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surreal oasis
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rq i know how to solve this normally

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but i dont understand

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this method

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like i know how to get to the simultaneous equation

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but not what you do after

austere scroll
surreal oasis
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oh do i solvve

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the simultaneous equations

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?

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and expand the bracket

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finding a and b

austere scroll
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well.. substitution or elimination again like usual

surreal oasis
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?

austere scroll
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you have the system 2a+3b=p and 3a-2b=4

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clearly those equations are equivalent to 6a+9b=3p and 6a-4b=8, subtracting the 1st from the 2nd gives 13b=3p-8

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hence you have b = (3p-8)/13

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hence you can get a

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alternatively, you just multiply the initial numerator and denominator by the denominator's conjugate, just like you've likely done with radicals (sqrt(a)-sqrt(b) type denominators)

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@surreal oasis

surreal oasis
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alr

austere scroll
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but yeah.. it's just knowledge you should already have in either case

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the prior especially, the latter the same general idea

surreal oasis
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thats why

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but i understand that

austere scroll
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Ok

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but given you havent asked anything, I assume my explanation was 100% clear?

surreal oasis
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yeah

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i understand

austere scroll
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ok

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feel free to close the channel then

surreal oasis
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+close

rotund bobcatBOT
# surreal oasis +close
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