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If D = |(1" "cosalpha" "1),(-sinalpha" "...

If `D = |(1" "cosalpha" "1),(-sinalpha" "1" "-cosalpha),(-1" "sinalpha" "1)|`, then D lies in the interval :

A

`[-2,2]`

B

`[2,4]`

C

`[0,4]`

D

`[2 - sqrt(2),2 + sqrt(2)].`

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The correct Answer is:
D
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