If Cosec 31^@=x, then sin^2 59+1/(cosec^...

If `Cosec 31^@=x`, then `sin^2 59+1/(cosec^2 31)+ tan^2 59-1/(sin^2 59. cosec^2 59)` is equal to:

A

`x+1`

B

`x^(2) -1`

C

`x - 1`

D

`x^(2) + 1`

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The correct Answer is:

B

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