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The range of sec^(2)x+"4 cosec"^(2)x is...

The range of `sec^(2)x+"4 cosec"^(2)x` is

A

`[1, 5]`

B

`[5, oo]`

C

`[9, oo)`

D

`[4, 9]`

Text Solution

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The correct Answer is:
3
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