1.

If (cot^(-1)x)^(2)-7(cot^(-1)x)+10 gt 0, then x lies in the interval

Answer»

(cot5, COT2)
`(-INFTY, cot5) CUP (cot2, infty)`
`(-infty, cot5)`
`(cot2, infty)`

ANSWER :D


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