Further Maths (WJEC)

 

C1 THE BINOMIAL EXPANSION

Page history last edited by Steph Richards 4 mos ago

WJEC SPECIFICATION

 

 

GET SOME PDF NOTES AND EXAMPLES ON BINOMIAL EXPANSION

 

YOUTUBE VIDEO ON PASCAL'S TRIANGLE!

REQUESTED EXAMPLE 1

 

Comments (3)

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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

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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!

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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 =]

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