Don't do 10 problems in a row. Do 1 problem, 4 ways:
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Many students make the fatal mistake of separating theory from practice. They spend weeks rereading their course (Polycopié) but never touch an exam paper until the night before the DS. This leads to disaster. Don't do 10 problems in a row
A high-quality PDF combines these two: it provides the theoretical framework (method) immediately followed by applied exercises from real exams (annales). A high-quality PDF combines these two: it provides