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(cosectheta+cottheta)(cosectheta-cotthet...

`(cosectheta+cottheta)(cosectheta-cottheta)=`
`1) 1`
`2) 0`
`3) 2`
`4) -1`

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(cosectheta-cottheta)^2=

(cosectheta+cottheta)^2=

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cosectheta=4/5 cottheta=?

If cosectheta+cottheta=2 , then cottheta=?

(cottheta-cosectheta+1)/(cottheta+cosectheta-1) = ?

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costheta/(cosec theta+1)+costheta/(cosectheta-1)=2

(1+cottheta-cosectheta)(1+tantheta+sectheta)=?

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