1.

If tan−1x = x10 for some x ∊ R, then the value of cot−1 x is(a) π5 (b) 2π5 (c) 3π5 (d) 4π5

Answer» If tan−1x = x10 for some x ∊ R, then the value of cot1 x is

(a) π5 (b) 2π5 (c) 3π5 (d) 4π5


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