Sunday, November 17, 2013

solve x + 1/x < (1/2)(7-x)

this one is quite long - I'll outline it for you :) 


x+%2B+1%2Fx+%3C+%281%2F2%29%287-x%29 

eventually leads to 
%0D%0A%283x%5E2-7x%2B2%29%2F%282x%29%3C0%0D%0A 

which leads us to test about the points x=0, x=1/3, and x=2 

after testing on these intervals we find 

%0D%0Ax%3C0%0D%0A 
or 1%2F3%3Cx%3C2 

:)

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