Do you need to know a lot of Actionscript to develop in Flex 3?

Flex is a mix of mxml and actionscript 3. Now my questions is simple. How much AS3 do you need to know in order to develop seriously using Flex 3 technology? Thanks.Do you need to know a lot of Actionscript to develop in Flex 3?
Adobe Flex


http://www.adobe.com/products/flex/


http://opensource.adobe.com/wiki/display…


video demo,


http://www.adobe.com/products/flex/media…





Actionscript 3 ~Flash Player runtime


http://www.adobe.com/devnet/actionscript…





you would have to know the terms at least, in order to select those options, if you already know other programs like flash, dreamweaver and expressions and xml, then some of the coding would be simple as shown in demo,


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Flash


http://www.adobe.com/products/flash/


Dreamweaver


http://www.adobe.com/products/dreamweave…





Microsoft Expression ~with silverlight* screen


http://www.microsoft.com/expression/


Microsoft Xml


http://msdn.microsoft.com/en-us/xml/defa…





Silverlight*


http://silverlight.net/


Visual Basic 2008 Express Edition


http://www.microsoft.com/Express/VB/


Adobe Director


http://www.adobe.com/products/director/


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