(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A curve has equation y=e^2x-x^2+x-3 , find value of x for which d^2y/dx^2=0.

2. Relevant equations

3. The attempt at a solution

well. i started by finding out the 1st and 2nd derivative:

y=e^2x-x^2+x-3

dy/dx= 2e2^x-2x+1 and d2y/dx2=4e^2x-2 = 0

dy/dx =>2e^2x=2x-1

=>e^2x = 2x/2 -1/2

e2x= x-1/2 (1)

sub. value (1) into: d2y/dx2.

4e^2x-2= 0

e^2x = 1/2

e^2x = 1/2 (x-1/2)

no idea.. on what to do now =/.

Thanks in adv.

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# Homework Help: Find second derivative

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