Question

(1-cotθ)+(1+cotθ)^2=2cosec^2θ

Answer 1

Answer:

don't understand your questions sorry

Step-by-step explanation:

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Answer 2

Answer:

$cotθ−tanθ= sinθcosθ​ − cosθsinθ​$

=  

$cosθ.sinθcos 2 θ−sin 2 θ$

​  

 

=  

$sinθ.cosθ2cos 2 θ−1​ . [Since 1−sin 2 θ=cos 2 θ]$

hope it helps

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