Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.
[[0, 1, 2], [3, 4, 5], [6, 7, 8]]
[[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]]
[[0, 1, 2, 3, 4], [5, 6, 7, 8, 9], [10, 11]]
Error due to invalid shape
Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.