Mathematics, 23.08.2020 02:01, mewings

Can someone please help me with this question? I REALLY need help. What is the value of $\sum_{n=1}^\infty (\tan^{-1}\sqrt{n}-\tan^{-1}\sqrt{n+1})$ ? The answer should be in radians.

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Can someone please help me with this question? I REALLY need help. What is the value of ? The answe...