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!
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.