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Plz give me the solution of question no 7 ???I am not getting 😒😒😒😒😒😒

Plz give me the solution of question no 7 ???I am not getting 😒😒😒😒😒😒

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1 Answers

Khimraj
3007 Points
4 years ago
Domain of b =(0,\infty)
For local minima at x=1
f(1-βˆ‚x) > f(1)
where βˆ‚x is a small positive number
then
3-1 > 12 + lnb
lnb
b 1
So set of values of b = (0,e)
Hope it clears.
Β 

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