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Arun Jangir posted an Question
November 08, 2020 • 03:32 am 30 points
  • IIT JAM
  • Chemistry (CY)

Is t/2. her the maximum value of f(x) ( is ex. e (a) (b) e e (c) (d) e ve then, sol. (c) let fx)= f'(x)=- (logx+1)=-x* (log x+1)= 0 f'x)-0-x "(logx + 1)=0 log x

is t/2. Her The maximum value of f(x) ( is Ex. e (A) (B) e e (C) (D) e Ve then, Sol. (C) Let fx)= f'(x)=- (logx+1)=-x* (log x+1)= 0 f'x)-0-x "(logx + 1)=0 log x+1=0 logx=-1x=e Clearly, f'(x) <0 atx = e

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  • Suman Kumar

    Find ist derivative. Equate the equation with zero. You will get a value for 'x' . Then again find 2nd derivative of the function. Substitute the value of 'x' . if 2nd derivative is less than zero then 'x' is a maxima for the function

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    is that we have to find out two times derivative of x

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    yes Arun

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    Priyanshu kumar best-answer

    what's your doubt in this?

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    I can't understand this whole question

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    here for finding maximum value first you have to find the first derivative of the given function...if it is less than 0 then maximum value is that value

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    Is there any problem in finding the derivative of given function

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    no now que is solved

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    thank you

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