Can anyone help me with this A Level maths question?
The question is “Find the minimum value of xlnx for x>0” and I have no idea how to even start, if anyone can give me any hints I’d really appreciate it
Reply 1
Minimum value implies differentiation
X and lnx are 2 functions of x, so product rule
Minimum values are stationary points
X and lnx are 2 functions of x, so product rule
Minimum values are stationary points
Reply 2
12
Original post
by yayabananMinimum value implies differentiation
X and lnx are 2 functions of x, so product rule
Minimum values are stationary points
X and lnx are 2 functions of x, so product rule
Minimum values are stationary points
Thank you!
Reply 3
Original post
by College student2Thank you!
Key word here is 'minimum' which for a function usually implies differentiation.
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