Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2002 | Oct-Nov | P1-9709/01 | Q#1
Question
Find the value of the term which is independent of 
in the expansion of 
Solution
Expression for the general term in the Binomial expansion of 
is:
In the given case:
Hence;
Since we are looking for value of the term independent of 
, i.e. 
: we can equate
Finally substituting in:
Therefore the value of the term independent of is 54.
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