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For 0 prec theta prec 90, if (sec theta(...

For `0 prec theta prec 90`, if `(sec theta( 1- sin theta)(sec theta+tan theta))/(sec theta-tan theta)^2=(1+k)/(1-k)`, then k is is equal to :

A

`sin theta`

B

`sec theta`

C

`cos theta`

D

`cosec theta`

Text Solution

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The correct Answer is:
A
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