Mathematically, I know the graph of |x| has a sharp V-turn at zero, so the left-hand and right-hand derivatives don’t match, making it non-differentiable there. But honestly, this feels like my own study schedule—continuous effort every single day, but there are moments, like last Wednesday when I mixed up a formula, where my understanding just isn’t smooth and I have to pause and turn direction. The graph of my revision looks just like that V, steady lines meeting at a point of exhausted confusion over a single tricky problem.
#exams#study
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