Evaluate cot (tan ^(-1) 3)....

Evaluate `cot (tan ^(-1) 3)`.

Verified by Experts

Let `tan^(-1)3 = x`
` rArr" "tan x = 3`
`rArr" "cot x =(1)/(3)`
`rArr" "cot(tan^(-1)3) =(1)/(3)`

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