The range of sin^(-1)[x^(2)+1/2] + cos^(...

The range of `sin^(-1)[x^(2)+1/2] + cos^(-1)[x^(2)- 1/2]`, where [.] denotes the greatest integer function, is

A

`{pi/2, pi}`

B

`{pi}`

C

`{pi/2}`

D

none of these

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The correct Answer is:

B

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