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Question 4. Show that 2021 1 arctan(2021) - arctan (2) + 14 20212 2 1 4 42 S|arctan(2021) - arctan(2) + 14 22 k=2

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Question 4. Show that 2021 1 arctan(2021) - arctan (2) + 14 20212 2 1 4 42 S|arctan(2021) - arctan(2) + 14 22 k=2

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