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(cosectheta-cottheta)^2 = …………….....

`(cosectheta-cottheta)^2` = ……………..

A

`(1+costheta)/(1-costheta)`

B

`(1-costheta)/(1+costheta)`

C

`(sintheta+1)/(sectheta)`

D

`(1-costheta)/2`

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