| 
  • If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • You already know Dokkio is an AI-powered assistant to organize & manage your digital files & messages. Very soon, Dokkio will support Outlook as well as One Drive. Check it out today!

View
 

C1 THE BINOMIAL EXPANSION

Page history last edited by Steph Richards 10 years, 11 months ago

Comments (3)

LBJ 91 said

at 2:21 pm on Dec 30, 2008


Please help

How would you work out these two questions?

1) Find the coefficient of x in the expansion of (x + 1/2x)^5

2) The coefficient of x^2 in the expansion of (1+x)^n is 36. Given that n is a positive integer find the value of n.


It would be awesome if someone could explain to me how to do these

Steph Richards said

at 9:34 pm on Dec 30, 2008

Examples 2 and 3 in the Notes and Examples that I have just uploaded should help. I will try to get a worked solution to your specific questions ASAP. Binomial is one of the hardest C1 topics to master but when you see the patterens then it gets easier!

Stephy said

at 11:01 pm on Jan 8, 2009

ahh I hated these questiopns when I first started.
With a bit of help from here, I'm starting to get them now =]

You don't have permission to comment on this page.