- #1
ardentmed
- 158
- 0
Hey guys,
Need some more help again. I'll keep it brief.
This thread is only for question one. Please ignore 2ab.
I started off by computing f'(x) via the product rule and calculating the zeros, at which point I got:
x= 1/√ 5 and x=√(3)
However, I'm at a loss as to what I should do next. Taking the derivative of f'(x) =4x(10x^2 - 8) , which means that the inflection points are found at x=0, and x=√ 4/√ 5
Am I on the right track, or did I make a clerical error up to this point?
What I don't fully grasp is whether I should be confirming my answers with the derivative test or if stating them is sufficient.
Thanks in advance.
Need some more help again. I'll keep it brief.
This thread is only for question one. Please ignore 2ab.
![08b1167bae0c33982682_21.jpg](http://www.use.com/images/s_2/08b1167bae0c33982682_21.jpg?is=true&ps=true&rand=12548395898)
I started off by computing f'(x) via the product rule and calculating the zeros, at which point I got:
x= 1/√ 5 and x=√(3)
However, I'm at a loss as to what I should do next. Taking the derivative of f'(x) =4x(10x^2 - 8) , which means that the inflection points are found at x=0, and x=√ 4/√ 5
Am I on the right track, or did I make a clerical error up to this point?
What I don't fully grasp is whether I should be confirming my answers with the derivative test or if stating them is sufficient.
Thanks in advance.