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ktpr2
ktpr2 is offline
#1
Mar27-05, 02:53 AM
P: 192
I have

f[x_] := ax+b/2x+d
f'[x]

and I get

-2(ax+b)/(d+2x)^2

instead of

ad-2b/(d+2x)^2

Assuming the above, my answer, is correct, why does mathemetica give me its answer? Is it interpreting one of the variables as some kind of weird constant?
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