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The value of cot(∑cot^-1(1 + ∑2k) for n ∈ [n=1, 23] for k ∈ [k=1, n]

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The value of cot(∑cot-1(1 + ∑2k) for n ∈ [n=1, 23] for k ∈ [k=1, n]

(a) 23/25

(b) 25/23

(c) 23/24

(d) 24/23

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1 Answer

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Best answer

Correct option (b) 25/23

Explanation

Thus the given expression reduces to

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