# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2011 | Oct-Nov | (P1-9709/13) | Q#1

Hits: 247

**Question**

The coefficient of in the expansion of , is 30. Find the value of .

**Solution**

Expression for the Binomial expansion of is:

In the given case:

Hence;

Since the coefficient of in the expansion of , is 30:

Please follow and like us:

## Comments