If cosectheta + cottheta=p, then cos th...

If `cosectheta + cottheta=p`, then `cos theta=`

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If cosectheta-cottheta=q , then cosectheta=?

`(1)/(q)`

`q+(1)/(q)`

`(1)/(2q)`

`(1)/(2)(q+(1)/(q))`

If cosectheta + cottheta=p , then prove that the cos theta=(p^2-1)/(p^2+1)

`(p^2-1)/(p^2+1)`

`(p^2-2)/(p^2+1)`

`(p^2-1)/(p^2+2)`

None

If 8sectheta+6cosectheta=20 , then cottheta=?

`(3)/(4)`

`(4)/(3)`

none of these

cant determine