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Mathematics 7 Online
OpenStudy (luigi0210):

Distance optimization:

OpenStudy (luigi0210):

http://prntscr.com/3aj0z1

OpenStudy (luigi0210):

No, nothing fancy.. just using the distance formula I think. Calculus 1 stuff :P

OpenStudy (anonymous):

let z = rt((tan^-1 x - 1)^2 + (x-1)^2) then dz/dx= 0 for the least value..

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