## anonymous one year ago Differentiate: f(x)=x^5/2e^x i got (1/2)e^x x^3/2 (2x+5) is that right?

1. zepdrix

the exponential is in the denominator with the 5 or no?:) oh oh oh, it's x^(5/2)

2. zepdrix

$\Large\rm f(x)=x^{5/2}e^x$This?

3. zepdrix

Hmm yah looks correct, maybe a little over simplified though hehe.

4. UsukiDoll

product rule... if that's really the question?!!?!?!??!

5. UsukiDoll

this is frustrating... can you draw the question?!

6. triciaal

|dw:1433130619166:dw|

7. UsukiDoll

could be quotient rule... product rule... I have no idea.. I think everyone needs to learn Latex...I can see why people at stackexchange go nuts sometimes.

8. anonymous

yeah thats it! sorry!! lol

9. zepdrix

which..?

10. triciaal

@freckles more esp needed? another example of the conversation this morning

11. anonymous

the drawing is correct

12. UsukiDoll

what tricaal wrote is the right one.

13. anonymous

wait no hold on ill draw it

14. UsukiDoll

ok... that would be great. we all confused here.

15. anonymous

|dw:1433138019813:dw|

16. zepdrix

Yes, the one I posted. So your solution is correct.

17. anonymous

oh sorry i just kept scrolling down okay great thanks!!

18. UsukiDoll

I think he went a bit overboard. |dw:1433127295354:dw| where did you get the 2x+5 in your answer?

19. anonymous

im looking at my notes but now i cant figure it out

20. UsukiDoll

hmmm even wolfram agrees with you.. must be some ... oh of course. your answer is a factored out version of what I have.

21. UsukiDoll

yeah it's fine... both answers are correct... it's just that one extra step which is factoring like terms came into play here. I though I lost my mind for a sec lol

22. UsukiDoll

you can factor the smallest x, e^x, and a 1/2 out ... that's what happened...when I distributed those things. I got my answer.

23. anonymous

yeah jaja, but on my hw i think i didnt need to factor everything out, so i got confused

24. UsukiDoll

normally you don't have to... you could if you want. but an unfactored version

25. UsukiDoll

sorry os messed up an unfacrtored version of an answer is just as good as a factored version