## anonymous 3 years ago Derivation

1. anonymous

$f(x)= 8\sin(x)e ^{-x}-1$

2. terenzreignz

It's "Differentiation" by the way :) Product rule, @annas, you remember it? :D

3. anonymous

yeah sorry , i just wanna tell my answer

4. terenzreignz

You have an answer? Awesome, what is it?

5. anonymous

$-e ^{-x}(8sinx - 8cosx)$ i am getting this

6. terenzreignz

Correct :) Seems like you've got the product rule down ;)

7. terenzreignz

But if you're going to factor stuff out, might as well factor out the 8, too ;)

8. anonymous

lol thanks for help its basically part of newton-raphson method so i can factor out nothing

9. anonymous

*cannot

10. terenzreignz

Okay :)

11. anonymous

thank you for all your help really appreciate it !