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![[Post New]](/templates/default/images/icon_minipost_new.gif) 15 Mar 2008 17:30:50 IST
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layman method is rite....
f(0) = c >0
f(-1) = the given expression(let it be y)
as roots are imag.
so f(0) and f(-1) hav same sgn
so y>0
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Shubham
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