mathshelpplease
New member
- Joined
- Oct 5, 2021
- Messages
- 25
Hello, I have been struggling with this problem and got this far, but I am not sure how to proceed in actually solving to show that f(x) = 0
Any help would be much appreciated.
Consider the function:
f(x)=(1−1/4x)exp(−x2+5x−6)Show the following holds:

I have calculated that
f′(x)=((2x2−13x+19)exp(−x2+5x−6))/4and from that, that if f(x) = 0, x=(13+sqrt17)/4or x=(13−sqrt17)/4
but am unsure how to show that this means that x tends to infinity
Any help would be much appreciated.
Consider the function:
f(x)=(1−1/4x)exp(−x2+5x−6)Show the following holds:

I have calculated that
f′(x)=((2x2−13x+19)exp(−x2+5x−6))/4and from that, that if f(x) = 0, x=(13+sqrt17)/4or x=(13−sqrt17)/4
but am unsure how to show that this means that x tends to infinity