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If ((tan theta-sec theta+1)/(tan theta+s...

If `((tan theta-sec theta+1)/(tan theta+sec theta-1)) sec theta=1/k`, then k = _________.
यदि `((tan theta-sec theta+1)/(tan theta+sec theta-1)) sec theta=1/k` है, तो k=________.

A

`1+ sin theta`

B

`1-cos theta`

C

`1+cos theta`

D

`1-sin theta`

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