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The solution of the inequality (sec^(-1)...

The solution of the inequality `(sec^(-1)x)^(2)-6sec^(-1)x+8 gt 0` is

A

`(-infty, sec2) cup[1, infty)`

B

`(sec2,1)`

C

`[sec2,1]`

D

`(-infty, sec2] cup [1, infty)`

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The correct Answer is:
A
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