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Solution set of inequality (cot^-1x)^2-5...

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

A

`(cot 3, cot 2)`

B

`( - infty, cot 3) cup ( cot 2, infty)`

C

`( cot 2, infty)`

D

None of the above

Text Solution

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The correct Answer is:
B
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