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If alpha satisfies the inequation x^2 - ...

If `alpha` satisfies the inequation `x^2 - x - 2 > 0`, then a value exists for

A

`sin^(-1)alpha`

B

`cos^(-1)alpha`

C

`sec^(-1)alpha`

D

`cosec^(-1)alpha`

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The correct Answer is:
C, D
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