Whenever there is a negative under the radical sign, it comes out from underneath as i since the problem will contain a square root of -1. When simplifying these radical numbers in terms of i, follow the usual rules for simplifying radicals and treat the i with the rules for working with a variable. Examples:
The location of the Personal Macro Workbook is a little confusing, because older versions of Excel stored it in an XLSTART folder buried inside the Program Files folder. Even though you canât write any files to it, Excel 2007 and Excel 2010 also have XLSTART folders inside the Program Files directory.
In Excel 2007-2010, click the Record Macro button at the bottom left corner of the Excel window (just under Sheet1 sheet tab). In Excel 2000-2003, from the Tools menu select, Macro, Record New Macro. In the Record Macro dialog, for the 'Store macro in' option, select Personal Macro Workbook and click OK. Since this is just a 'dummy' macro for the purpose of creating the Personal Macro Workbook, we can stop the current recording immediately.