If f(x) = sec 2x + cosec 2x, then f(x) i...

If f(x) = sec 2x + cosec 2x, then f(x) is discontinuous at all points in

`{n pi, n in N}`

`{(2n +- 1)(pi)/(4), n in I}`

`{(n pi)/(4), n in I}`

`{(2n +- 1)(pi)/(8), n in I}`

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A, B, C

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