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If (cot^(-1)x)^(2)-7(cot^(-1)x)+10 gt 0,...

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

A

`(cot5, cot2)`

B

`(-oo,cot5)uu(cot2,oo)`

C

`(-oo,cot5)`

D

`(cot2,oo)`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-INVERSET TRIGONOMETRIC FUNCTIONS-LECTURE SHEET (EXERCISE -III LEVEL -II (ADVANCED) SINGLE ANSWER TYPE QUESTIONS)5
  1. If (cot^(-1)x)^(2)-7(cot^(-1)x)+10 gt 0, then x lies in the interval

    Text Solution

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