Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
Write the value of cot–1(–x) for all x ∈ R in terms of cot–1x.
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).