To create a graph of sin in Excel 2007, following procedure below:
1. Create a table as below
In column A with the contents of the data point, in the following example created scale with intervals of 15 degrees.
In cell B3 enter the formula "= SIN (radians (A3))"
Copy the formula from B3 up to B27
2. Block range A3: B27
On the menu bar choose Insert - Scatter - Select the type which has a scatter graph line
3. The result will look like below
If you interest with this tutorial, Sample files can be downloaded here sine graph