Question: i stuck here please solve this question 6.( 12 points ) Find all singularities of each of the following functions and classify each of them.
i stuck here please solve this question

6.( 12 points ) Find all singularities of each of the following functions and classify each of them. COS (b) Hint on part b: write cos(2) = cos((: - */2) + 2) and use an identity
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