betelgeuse Posted August 31, 2006 Share Posted August 31, 2006 a=3^b b^a-a^b=0 a.b=? Link to comment Share on other sites More sharing options...
hgupta Posted August 31, 2006 Share Posted August 31, 2006 Do you know the answer? Is it 18? Link to comment Share on other sites More sharing options...
insane_alien Posted August 31, 2006 Share Posted August 31, 2006 nah it 42. its always 42. Link to comment Share on other sites More sharing options...
betelgeuse Posted August 31, 2006 Author Share Posted August 31, 2006 answer is "9" but ı dont know how it is.. Link to comment Share on other sites More sharing options...
ecoli Posted September 1, 2006 Share Posted September 1, 2006 what's the dot between the a and b in the last equation supposed to be? it's that multiplication? Link to comment Share on other sites More sharing options...
insane_alien Posted September 1, 2006 Share Posted September 1, 2006 dot product since it would appear to be scalar values it works out to be multiplication. i don't even know what he's supposed to be working out. if he wants help he should tell us what to look ffor. Link to comment Share on other sites More sharing options...
the tree Posted September 4, 2006 Share Posted September 4, 2006 Okay so we know that: a=3b and ba=ab, and you want a proof that ab=9. Is that right? Link to comment Share on other sites More sharing options...
raptor Posted September 5, 2006 Share Posted September 5, 2006 I found ab to be something like: 9.721577574 with a = 5.974795378 and b = 1.627097994 Link to comment Share on other sites More sharing options...
woelen Posted September 5, 2006 Share Posted September 5, 2006 I have the imrpression that the OP has erroneously described the problem. I have been looking into this problem and as it is formulated, it only can be tackled by means of iterative numerical methods for root finding and then an answer, like raptor has given pops up, but I suspect this is not the answer the OP is expecting. Link to comment Share on other sites More sharing options...
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