Just some good ole calculus
find f(x) if f(2)=4 and the tangent line at x has a slope of (x-1)e^(x^(2)-2x)
that is not a slope, that is a function how does the question read?
exactly how I typed it out sadly...
actually could use help with a few of these, but I'll only trouble you with the one I'm currently asking about
ok i get what it is asking, but it was written by a moron
\((x-1)e^{x^2+2}\) is not the slope of anything, it is a function what they want you to do is find the anti derivative of this thing, which you can do by a simple \(u\) - sub and then find the constant by using \(f(2)=4\)
typo there, should be \((x-1)e^{x^2-2x}\)
put \(u=x^2-2x, dyu =(2x-2)dx, \frac{1}{2}du = (x-1)dx\) and integrate \[\frac{1}{2}\int e^udu\]
right away you get \[f(x)=\frac{1}{2}e^{x^2-2x}+C\] and then you find \(C\)
ok yeah thanks for the help, that's what I got and now just need to find the C, if anyone wants to help with the other problems that would be awesome too
do you know how to find \(C \)?
yes, set x=2 and the whole equation equal to 4 and then solve
ok then you are good to go
hey thanks for your help
yw
Join our real-time social learning platform and learn together with your friends!