mathwonk Science Advisor Homework Helper Messages 12,042 Reaction score 2,342 Jun 24, 2011 #31 can you prove that if 1.5 < x < 2.5 then 2 < x^2 < 7? what if 2-d < x < 2+d? then what can you prove about x^2? in that latter case, if d-->0, what does x^2 do?
can you prove that if 1.5 < x < 2.5 then 2 < x^2 < 7? what if 2-d < x < 2+d? then what can you prove about x^2? in that latter case, if d-->0, what does x^2 do?