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+1 vote
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in Trigonometry by (34.4k points)
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Write the value of cot–1(–x) for all x ∈ R in terms of cot–1x.

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Best answer

We know that cot-1 (-x) = π – cot-1 (x)

∴ The value of cot-1 (-x) for all x ∈ R in term of cot-1 x is π – cot-1 (x).

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