Find the value मान ज्ञात करें : (sin t...

Find the value
मान ज्ञात करें : `(sin theta+cos theta-1)/(sin theta-cos theta+1)xx(tan^2 theta (cosec^2 theta -1))/(sec theta -tan theta )`

A

`1/2`

B

`-1`

C

`1`

D

`0`

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The correct Answer is:

C

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