I had a hero of a physics professor who figured out that new editions of textbooks just mixed up the number of the exercises, so he advised students that they could just order previous versions of the textbooks and he’d provide the “key” for how the questions were shuffled.
I had a hero of a physics professor who figured out that new editions of textbooks just mixed up the number of the exercises, so he advised students that they could just order previous versions of the textbooks and he’d provide the “key” for how the questions were shuffled.