A = 420
k = 2
These were worked out from the earlier part (a)
What is the method of calculating the independent term ? Someone plz help
Find for r=5 (this I did by recognition and some thought...dont really think there is a 'method')
15C5 k^5 = 3003*32= 96096 I think...
I agree with the above post too, just find an r value so that the terms cancel.
what is the r?
that is, the fomrula for a binomial expansion, putting n=15
So the general term is
Can you find a value of r such that the power of x is zero? (Get the x indices together and solve the equation, or just do it by inspection). Evaluate the general term for this value of r.
nCr. Number of ways of choosing r objects from n items.
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