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![[Post New]](/templates/default/images/icon_minipost_new.gif) 23 Jul 2007 09:05:39 IST
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what is imaganery part of cosh( +i )
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There are two ways to live: you can live as if nothing is a miracle; you can live as if everything is a miracle.
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23 Jul 2007 11:36:47 IST
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Since coshx = (ex+e-x)/2
cosh(a+ib) = (ea+ib + e-a-ib)/2
cosh(a+ib) = {ea(cosb + i.sinb) + e-a(cosb - i.sinb)}/2
cosh(a+ib) = {(ea+e-a)cosb + i.(ea-e-a)sinb}/2
Imaginary part = (ea-e-a)sinb / 2 = (sinha)(sinb)
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23 Jul 2007 11:41:38 IST
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great...
question n reply 2
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24 Jul 2007 22:10:14 IST
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cos .cos -sin sin is imazinary part |
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