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Solution set of the inequality ( cot^(...

Solution set of the inequality
`( cot^(-1) x)^(2) - ( 5 cot^(-1) x) + 6 gt 0` is

A

`(cot 3, cot 2)`

B

`( - infty, cot 2) cup ( cot 2, infty)`

C

`( cot 2, infty)`

D

None of the above

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The correct Answer is:
B
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