Q8 of 137 Page 19

Write the minimum value of () = x.

Let y= x. Take antilog on both sides


ln y =x × ln x.Let us differentiate and find ’()=0




⇒ f’(x)=x x× (ln x + 1)


f’(x) =0



But ln x is not defined at x =0


Therefore, minima occur at . So,


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