i think you do f'(x) and use the product rule?

f'(x) = x (1/x) + lnx (1)

1+lnx = 0

lnx = -1

ok i dont kow where to go from there.

THANKS IN ADVANCE!

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- Feb 24th 2009, 04:20 PMLexiRaef(x) = xlnx. the minimum value attained by f is...
i think you do f'(x) and use the product rule?

f'(x) = x (1/x) + lnx (1)

1+lnx = 0

lnx = -1

ok i dont kow where to go from there.

THANKS IN ADVANCE! - Feb 24th 2009, 04:37 PMskeeter

for all x in the domain of , so is concave up everywhere, indicating is a minimum.

value of the minimum is