differentiate this please (1 Viewer)

[Drongoski]

 

[Menomaths]

1/2sqrt(x) - 1

Are you testing us?

 

[Drongoski]

1/2sqrt(x) - 1

Are you testing us?

No - I actually got an answer very different from the book's. So I need help to resolve this. Should be very easy.

 

[Menomaths]

No - I actually got an answer very different from the book's. So

Oh never mind you changed the question haha

 

[HeroicPandas]

i got

 

[Parvee]

I think you just let u= sqrt(x)-x and it should work out

EDIT: got the same answer as wolfram from doing this

http://www.wolframalpha.com/input/?i=derivative+of+sqrt(sqrt(x)-x)

 

[Drongoski]

i got

Thanks Heroic. I got the same answer as your 1st part. Book's answer:




Maybe the book, just released last year, has not been fully debugged.



Edit
Thanks everyone for your input.

 

[enigma_1]

What book is this? The new Fitzpatrick?