# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2013 | May-Jun | (P2-9709/21) | Q#3

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**Question**

**
i. **Show that .

**ii. **Hence show that

**Solution**

** i.
**

We are given that;

From this we can write;

From this we can write;

It can be formulated as;

Hence;

** ii.
**

We are required to show that;

We have found in (i) that;

Therefore;

Rule for integration of is:

Rule for integration of is:

Rule for integration of is:

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