Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2004 | Oct-Nov | (P1-9709/01) | Q#1

Hits: 146

Question

Find the coefficient of  in the expansion of

Solution

First rewrite the given expression in standard form.

Expression for the general term in the Binomial expansion of  is:

In the given case:

Hence;

Since we are looking for the term with  , i.e.  we can  equate

Finally substituting  in:

Therefore the coefficient of  is .

Please follow and like us:
error0

Comments