-Whiplash-
New member
- Joined
- Jan 22, 2014
- Messages
- 24
Hi, I'm sorry but I need help with calculus again. I've been doing pretty good ever since I started doing graphing, but this question is has got me stumped as what to do next:
find the intervals of increase. use the first derivative test to find the local maxima and minima. sketch a rough graph.
F(x) = (x2-1)/(x2+1)
I was able to find the derivative (I think) using the quotient rule:
F'(x)=(2x)/(x4+1)
and I set F'(x) to zero to find the critical point, but I don't know how to find X from a fraction like this. what should I do?
0=(2x)/(x4+1)
x=?
find the intervals of increase. use the first derivative test to find the local maxima and minima. sketch a rough graph.
F(x) = (x2-1)/(x2+1)
I was able to find the derivative (I think) using the quotient rule:
F'(x)=(2x)/(x4+1)
and I set F'(x) to zero to find the critical point, but I don't know how to find X from a fraction like this. what should I do?
0=(2x)/(x4+1)
x=?