differentiation

Year 12s: what will be the first way you research your future options? >>

Scroll to see replies

The (12^1/2) is just a constant, and so you don't differentiate it (like above)....you just keep it like it is, and differentiate the (x^1/2), which you have done correctly

Reply 21

Twiglet

lol sorry !!!! you have told me that like 1000000000's of time before .... sorry i just totally gorgot about the whole constant thing :redface:

thank you soo much for helping me - sorry for being silly and forgetting things !

Reply 22

Twiglet

dy/dx = (12^1/2) (1/2) (3^1/2)^-1/2

= root(3) / root(root(3)) = root(root(3))

right... i get that(3^1/2)^-1/2 = root(root(3)
but how...........

oh no, oh no i get it I, GET IT- hurrah !

Reply 23

Twiglet

OH NO

root(3) / root(root(3)) = root(root(3))

how?

surely if you convert it into powers it =
3^1/2 divided by (3^1/2)^1/2
= 3^1/2 " 3^1/4
= 3^1/4
= fourth root of 3

or is that the same?

Reply 24

Newton

Hi. I have just woken up so all of this seems confusing. :wink:

Can you tell me what exercise your question comes from and I shall explain it to you in full.

Newton.

Reply 25

Twiglet

i understand the entire think (thanks to you pple) the ONLY think is that root root 3 business in my last post

Reply 26

elpaw

franks

OH NO

how?

surely if you convert it into powers it =
3^1/2 divided by (3^1/2)^1/2
= 3^1/2 " 3^1/4
= 3^1/4
= fourth root of 3

or is that the same?

root(root(3)) === 4th root of 3

Reply 27

Twiglet

=== does mean = doesnt it ?!

Reply 28

elpaw

yeah, i was just emphasising the identity :tongue:

Reply 29

Twiglet

yeeeeeeeeeeey :biggrin:

FINALLY I HAVE GOT IT !!!

thank you thank you thank you !

Latest

Articles for you

Bmat: when it is, what it costs and how to prepare

Edexcel A-Level Economics Paper 1 - Unofficial Mark Scheme - 18 May 2023

What is an LLM and how could it benefit your career?

Powerful questions business students forget to ask their career advisers

Related discussions

Latest

Trending

Trending

Articles for you