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What is the value of 1+2 cot^2(90-x)-2 c...

What is the value of `1+2 cot^2(90-x)-2 cosec (90-x)cot (90-x)]//[cosec (90-x)-cot(90-x)]`?
`1+2 cot^2(90-x)-2 cosec (90-x)cot (90-x)]//[cosec (90-x)-cot(90-x)]` का मान क्या है?

A

`cosx + sinx`

B

`sinx- cosx`

C

`secx + tanx`

D

`secx- tanx`

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