MHT CET20249 May 2024Morning ShiftMathematicsApplication of DerivativesActual
The maximum value of x x is
Options
- Ae
- B2 e
- C1 e
- D2 e
Correct answer
C. 1 e
Step-by-step solution
Let f (x)= x x f ^ (x)= 1 x^2 - x x^2 For maximum or minimum value of f (x) , aligned & f ^ (x)=0 & 1- _e x x^2 =0 aligned _ e x=1 or x= e , which lie in (0, ) . For x= e , d ^2 y ~d x^2 =- 1 e ^3 , which is -ve . y is maximum at x= e and its maximum value = e e = 1 e .