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.
The location of the file is important and must reside in the XLSTART folder of where the user's profile or Excel application is installed. This special path responds to the loading event of Excel and loads any file stored in this folder. Therefore, macros which are stored in the file in the path XLSTART will open too. Macros that require a global use are stored in this type of file (i.e. User Defined functions).