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in my solution book,in some cases they use the same variable for two different free variables. for example x3=a and x4=a? why is this?
I thknk you're not supposed to do that, that's very strange that it's done that way in your book
in my solution book,in some cases they use the same variable for two different free variables. for example x3=a and x4=a? why is this?
I thknk you're not supposed to do that, that's very strange that it's done that way in your book