- #1
Samael
- 11
- 0
I'm having some problems with this following min/max problem.
[tex]C= 0.25t{e^-^0^.^3^t}[/tex]
I am being asked to find the Maximum and when it occurs (t)
Using the PR I obtained:
[tex]0.25t . {-0.3{e^-^0^.^3^t} + {e^-^0^.^3^t} . 0.25 [/tex]
Later by factoring
[tex]0.25 . e^-^0^.^3^t[(t - 0.3)][/tex]
Now because SP/TP at dy/dx = 0
I find one to give 0.3, but am not sure what to do with the other one [tex]0.25 . e^-^0^.^3^t[/tex]
When I make it equal to zero I get an answer which is wrong, I'm guessing the error is either in my factorising or transposing the above problem?
[tex]C= 0.25t{e^-^0^.^3^t}[/tex]
I am being asked to find the Maximum and when it occurs (t)
Using the PR I obtained:
[tex]0.25t . {-0.3{e^-^0^.^3^t} + {e^-^0^.^3^t} . 0.25 [/tex]
Later by factoring
[tex]0.25 . e^-^0^.^3^t[(t - 0.3)][/tex]
Now because SP/TP at dy/dx = 0
I find one to give 0.3, but am not sure what to do with the other one [tex]0.25 . e^-^0^.^3^t[/tex]
When I make it equal to zero I get an answer which is wrong, I'm guessing the error is either in my factorising or transposing the above problem?