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# indices

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24 Aug 2007, 23:06
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

solve for X & y : x^y = y^x & y = x^2 - explain
Director
Joined: 26 Feb 2006
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24 Aug 2007, 23:15
yasmeen wrote:
solve for X & y : x^y = y^x & y = x^2 - explain

x^y = y^x
x^(x^2) = (x^2)^x
x = 2
VP
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25 Aug 2007, 01:57
Himalayan wrote:
yasmeen wrote:
solve for X & y : x^y = y^x & y = x^2 - explain

x^y = y^x
x^(x^2) = (x^2)^x
x = 2

VP
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Location: London
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25 Aug 2007, 02:33
yasmeen wrote:
solve for X & y : x^y = y^x & y = x^2 - explain

x^(x^2)=x(X^2)^x
drop the vase
x^2=2x
x^2-2x=0
x(x-2)=0
x=0
and
x=2
Re: indices   [#permalink] 25 Aug 2007, 02:33
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