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If pi/2 lt theta lt 3 pi/2 then ...

If ` pi/2 lt theta lt 3 pi/2 ` then ` sqrt( (1-sin theta)/(1+ sin theta )) - tan theta ` is

A

`sec theta `

B

cosec`theta `

C

`- sec theta `

D

`- sec ((theta)/(2) )`

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The correct Answer is:
C
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