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Question: Old Maple MWS vs. new Maple 12 results differ !

Question:Old Maple MWS vs. new Maple 12 results differ !

KewlEugene 136 Maple
calculus student
July 17 2008
0
hi, i'm using an existing Maple mws that was created by some unknow version of Maple. the Maple text is show below, and the old result is the last line (0.28031703) restart; T := ->(1/8)*sqrt(x^2+225)+(1/3)*sqrt((20-x)^2+625); dT := D(T); solve(dT(x) = 0, x); evalf(%); Sols := %; Xbest := Sols[1]; solve(25/(20-x) = 15./x, x); T(%)-T(Xbest) 0.28031703 when i run in with Maple 12 Student Edition, the result I get is 11.41326364-(1/8)*sqrt(13.51659367[1]^2+225)-(1/3)*sqrt(1025-40*13.51659367[1]+13.51659367[1]^2) what am i doing wrong ? (i'm a 1st year calculus student and am learning this stuff). do i have to upgrade to a full Maple version to get this to work ? thanks.
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