1. Originally Posted by Samantha
So there are no maximum nor minimum?
No there are maxima and minima, but only local ones.

2. what is it? =)

3. Originally Posted by Samantha
what is it? =)
The points are (-1 ; 2) and (1 ; -2)

4. Originally Posted by janvdl
Would you mind explaining the other method of calculating maxima and minima to me?
We can also use second derivative test:
f'(a)=0 and f''(a)>0 (<0) imply f(a) is relative (or local) minimum (maximum).

5. I have 5 choices.

a) Relative maximum: x=0; Relative minimum x=squre root of5/3
b) Relative maximum: x=-1; Relative minimum x=1
c) Relative maxima: x=+-1; Relative minimum: x=0
d) Relative maximum: x = 0; Relative minima x = +-1
e) None of these

=(

6. Originally Posted by Samantha
I have 5 choices.

a) Relative maximum: x=0; Relative minimum x=squre root of5/3
b) Relative maximum: x=-1; Relative minimum x=1
c) Relative maxima: x=+-1; Relative minimum: x=0
d) Relative maximum: x = 0; Relative minima x = +-1
e) None of these

=(
I'd say b)...

7. So which 1? LOL

8. Originally Posted by Samantha
So which 1? LOL
b)

Im sorry, i accidentally pressed the wrong key

Page 2 of 2 First 12